Tutorials
Additionally to its high quality technical programme, ICC 2009 hosted overall 19 tutorials on different topics from communications.
The tutorials were half-day and took place on Sunday, 14 June and Thursday, 18 June 2009.
Sunday, 14 June 2009, 09:00 - 12:30 pm
Sunday, 14 June 2009, 02:00 - 05:30 pm
Thursday, 18 June 2009, 09:00 - 12:30 pm
Thursday, 18 June 2009, 02:00 - 05:30 pm
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Sunday, 14 June 2009, 09:00 - 12:30 pm
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IMT-Advanced System: Enabling Technologies and Standardizations
Presenters
- Andreas F. Molisch, Mitsubishi Electric Research Lab, Cambridge, MA, USA
- Zhifeng Tao, Mitsubishi Electric Research Lab, Cambridge, MA, USA
DateSunday, 14 June 2009, 09:00 - 12:30 pm
Abstract
Wireless communications services are becoming ever more popular, due to improvements in technology
and the emergence of new applications. With current 3G and WiFi systems bursting at the seams, new
systems with higher peak data rates and improved spectral efficiency are required. As a consequence,
several new “next-generation” standards are currently emerging, the most important of which are 3GPP-LTE,
Advanced WiMAX, and IEEE 802.11n. They will almost certainly be part of the 4G “IMT-Advanced” family
of standards that the ITU (International Telecommunications Union) is currently selecting. This tutorial
will provide up-to-date overview of 4G technologies and standard development.
Scope
The IMT-Advanced standards have a number of common features, namely that they are all based on MIMO-OFDM
(multiple-input – multiple-output orthogonal frequency division multiplexing) physical layer technology,
use advanced coding schemes like turbo code/LDPC, need inter-cell interference coordination, and improve
the efficiency of the medium access control (MAC) layer. In our tutorial, we will compare how those
technologies are applied in the different standards. Based on our first-hand knowledge gained during our
participation of and contribution to all three standards, we will provide a systematic and detailed
overview of the keys to the future of broadband wireless communications.
Intended Audience
This tutorial is intended for typical ICC, GLOBECOM, PIMRC, and WCNC attendees, including researchers in both academia and industry, practicing engineers, as well as general audience.
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Congestion Control in Heterogeneous Networks
Presenter
DateSunday, 14 June 2009, 09:00am - 12:30 pm
Abstract
The Transmission Control Protocol (TCP) has become the de facto congestion control standard used in
most applications. It was originally designed primarily for the wired networks in which, random bit
errors, a characteristic usually exhibited in the wireless network, are negligible, and congestion is the
main cause of packet loss. The emerging wireless applications call for a calibration of this congestion
control standard for the heterogeneous network environment. In this tutorial, following a brief
introduction to TCP, we analyze the problems that TCP exhibits in the wireless IP communication
environment, and illustrate the viable strategies by detailed examples. At the end, remaining open
issues are discoursed.
Scope
This tutorial first provides a brief overview and historical perspectives of TCP, analyzes the
deficiency of stock TCP for the wireless IP communication environment, classifies and discusses
various proposed strategies of modifying stock TCP and introducing non-TCP protocols to mitigate
shortcomings of current congestion control in heterogeneous networks, and discourses remaining open issues.
Intended Audience
students, educators, practicing network engineers and scientists
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HSDPA, HSUPA and MIMO-Aided Cross-Layer-Optimized FDD versus TDD Networking for 'Green Radio'
Presenter
DateSunday, 14 June 2009, 09:00 - 12:30 pm
Abstract
This research-oriented presentation is based on the Wiley/IEEE Press monographs [1, 2] and considers the
joint benefits of both adaptive physical and adaptive network-layer performance enhancement techniques,
with special emphasis on the latter. More specifically, conventional systems would drop a call in progress,
if the communications quality falls below the target quality of service and it cannot be improved by handing
over to another physical channel. By contrast, the adaptivetransceivers of the near future are expected to
simply ’instantaneously drop the throughput, rather than dropping the call’ by reconfiguring themselves in
a more robust mode of operation. It is demonstrated that the proposed beam-forming andadaptive transmission
techniques may double the expected teletraffic capacity of the system, whilst maintaining the same AVERAGE
performance as their conventional fixed-mode counterparts.
We explore the inherent implications of the bandwidth versus power efficiency criteria routinely employed to
characterize wireless communication systems. We stress the pressing importance of the power efficiency-related
green radio considerations in the context of contemporary as well as future wireless networks. Finally, we
carry out a top-down analysis of a hypothetical commercial wireless network and demonstrate that the appropriate
choice of the optimization criterion has a profound influence on the overall network performance.
[1] L. Hanzo, J.S. Blogh, S. Ni: 3G Systems and Intelligent HSDPA-Style FDD versus TDD Wireless Networking
- Smart Antennas and Adaptive Modulation, JohnWiley, January, 2008
[2] L. Hanzo, L-L. Yang, E-L. Kuan and K. Yen: Single- and Multi-Carrier CDMA: Multi-User Detection, Space-Time
Spreading, Synchronisation, Standards and Networking, IEEE Press - John Wiley, June 2003, 1060 pages
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Selection-Based Resource Allocation in Future Wireless Networks
Presenters
DateSunday, 14 June 2009, 09:00 - 12:30 pm
Abstract
Over the past decade we have witnessed an unprecedented growth in the demand for providing reliable high-speed wireless
communication links in order to support a wide range of applications, including voice, video, e-mail, web browsing, to name
a few. Highly efficient use of available system resources, like spectrum and space, is emerging as a paramount requirement
in design of future wireless communication systems. This tutorial will present a comprehensive introduction and overview to
the various selection-based resource allocation applications and some important performance measures, including average error
rate, outage probability, and capacity for general selection-based algorithms. We will especially consider point-to-point MIMO
and point-to-multipoint multiuser communication systems, with a particular focus on practical low-complexity algorithms in
generalized fading transmission environments. A summary of the main analysis techniques will be presented, as well as
simulation studies which examine the various system design tradeoffs.
Scope
Resource allocation has been realized in different ways in a number of current systems such as WiFi, WiMAX, and 3rd
generation partnership project (3GPP) long term evolution (LTE). Selection-based resource allocation refers to changing
transmission parameters over a link in response to changing channel conditions. This is achieved using a combination of
channel aware strategies and selection strategies; and is considered to be a powerful means of achieving high efficiency and
throughput in wireless networks. We view the resource allocation problem from the standpoint of selection diversity. Diversity,
which provides the receiver with multiple independent or correlated faded copies of the transmitted signal, has spanned a wide
range of domains including frequency, time, and space.
Selection-based resource allocation in MIMO and multiuser applications plays an important role in advancing the wireless
industry from third generation (3G) to cutting edge fourth generation (4G) systems. This tutorial will take the audience
step-by-step from the basics of selection diversity in multiple-input single-output/single-input multiple-output (MISO/SIMO)
and multiple-input multiple-output (MIMO) systems, through to various selection algorithms, coding techniques, and multiaccess
schemes. Much of the tutorial will focus on advanced topics such as antenna subset selection with reduced feedback
requirements, and multiuser diversity selection with dynamic spectrum allocation. Practical examples are emphasized. Overall,
the tutorial takes a systems view of the selection-based resource allocation technologies, in order to present a systematic analysis
of the benefits and drawbacks of the various selection algorithms; which will be accessible by researchers and engineers alike.
Intended Audience
This tutorial is aimed at university researchers, practitioners in industry, and postgraduate students, as well as individuals
working for government, military, science and technology institutions who would like to learn more about selection-based
resource allocation for MIMO and multiuser communication systems.
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Multiple Antenna Systems from Optimum Combining to MIMO: a Random Matrix Theory Approach
Presenter
DateSunday, 14 June 2009, 09:00 - 12:30 pm
Abstract
Multiple antenna systems can exploit the spatial resource to mitigate multipath, to reduce
multiuser interference, and to increase spectral efficiency. Applications include wireless
cellular systems, high-speed wireless LAN, WiMAX, as well as energy-constrained multinode
wireless systems. This tutorial provides the basic principles and applications of
multiple antenna systems, including MIMO and distributed MIMO, and their analysis
based on random matrix theory. The effect of space and time correlation on the capacity of
MIMO channels will first be presented for a point-to-point link. In network scenarios,
where many users employ MIMO, understanding how the capacity decreases due to the
presence of MIMO interferers is of critical importance. This issue will be discussed in
detail, with practical considerations regarding the number of antennas that should be used
in various scenarios. We then present practical solutions for MIMO systems, and their
performance analysis. Finally, we illustrate some applications of multiple antenna systems
and MIMO in cellular systems, wireless LAN, WiMAX, and cooperative diversity for
energy constrained wireless sensor networks.
Scope: This tutorial provides the basic principles and applications of multiple
antenna systems, including MIMO and distributed MIMO, and their analysis
based on random matrix theory.
Intended Audience: Engineers that want to understand, from a system perspective, the role
of multiple antennas in wireless systems; researchers that want to
understand the connection between the theory of random matrices and MIMO
systems, as well as the most recent advances on this topic.
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Sunday, 14 June 2009, 02:00 - 05:30 pm
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A Key Enabling Technology Towards IMT-Advanced: Point-to-Multipoint MIMO-OFDMA
Presenters
- G. Bauch, DOCOMO Europe Labs, Germany
- G. Dietl, DOCOMO Europe Labs, Germany
DateSunday, 14 June 2009, 02:00 - 05:30 pm
Abstract
A major goal of this tutorial is to bridge the gap between academic
research and industrial application. Based on the authors background
from working in a company's research department with both close
collaboration with universities and their active participation in the
standardization of 3GPP LTE/LTE-Advanced, the tutorial tries to give
both an introduction to the theoretical basis of MU-MIMO as well as
to practical problems and solutions which have the potential to make
their way into standards. 3GPP-LTE and LTE-Advanced will be used as
exemplary framework.
We will start with a description of performance targets for IMT-
Advanced or 3GPP LTE-Advanced, respectively, and will demonstrate
that advanced MIMO is an indispensible ingredient in order to meet
those targets even under perfect conditions. We will then explain the
principles of MIMO modes in LTE with a focus on closed-loop schemes.
The baseline in LTE is single-user MIMO, i.e., users are separated by
means of OFDMA and TDMA but not by spatial separation. However, LTE
includes already a very simple form of Multiuser (MU) MIMO where SDMA
is possible. In the uplink this is mainly a scheduling problem.
However, in the downlink the precoder has to take care of inter-user
interference. Therefore, we focus on MU-MIMO for the downlink. We
will explain the potential benefits of MU-MIMO over SU-MIMO and
describe the solution which is included in LTE. The relatively poor
performance of this solution will be demonstrated and explained
mainly by the too small feedback of channel state information.
This motivates to look for better MU-MIMO solutions. We will now give
an introduction to information theoretic limits in order to
demonstrate the potential of MU-MIMO. We will present non-linear MU-
MIMO algorithms which aim at performance close to those limits. This
part of the tutorial will be supported by a software demonstration.
This part will also include an introduction to dirty paper coding and
an intuitive explanation of Tomlinson-Harashima precoding as a simple
implementation of dirty paper coding.
Finally, we will consider linear MU-MIMO schemes and will show that
linear schemes can achieve performance reasonably close to capacity
approaching non-linear schemes while having significantly lower
complexity. We will particularly focus on limited feedback schemes
including precoder or channel vector quantization codebook design.
This is motivated by the fact that the amount of feedback bits is a
major restriction in commercial systems.
We will compare theoretical limits and various MU- and SU-MIMO
schemes in terms of achievable rates and complexity. Rate
distribution among users, fairness and possible application scenarios
will also be discussed.
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Oblivious Routing and Applications
Presenters
DateSunday, 14 June 2009, 02:00 - 05:30 pm
Abstract
Routing is a central topic in networking since it determines the connectivity between users.
Recently, with the growing use of the Internet for a wide variety of bandwidth intensive
applications, including peer-to-peer and on-demand/real-time multimedia, it has also become
important that routing accounts for the quality-of-service needs of applications and users. A
research problem of much current interest is traffic-oblivious routing for ensuring that the
network provides the needed quality-of-service despite uncertain knowledge of the carried
traffic. Oblivious routing involves using pre-determined paths to route between each ingressegress
node in the network (typically an Internet domain) that do not change with changing
traffic patterns. By removing the need to detect changes in traffic in real-time or reconfigure
the network in response to it, significant simplification in network management/operations
and associated reduction in costs can be achieved. Moreover, oblivious routing has the
potential to make the Internet much more robust and predictable in the face of rapidly varying
and unpredictable traffic patterns. Theoretical advances in the area have shown that
oblivious routing can provide these benefits without compromising capacity efficiency. We
survey recent advances in oblivious routing with a view towards its application in (intradomain)
Internet routing.
Scope
The scope of the tutorial is Internet routing and traffic engineering based on oblivious routing
techniques, spanning algorithms, optimization, performance evaluation, and deployment
aspects.
Intended Audience
- Graduate students and researchers in the areas of networking, computer science, and
operations research.
- Practicing networking professionals in the technology industry.
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MIMO system engineering for wireless cellular networks
Presenter
- Howard Huang, Bell Labs, Alcatel-Lucent, Holmdel, NJ, USA
DateSunday, 14 June 2009, 02:00 - 05:30 pm
Abstract
This tutorial explains how state-of-the-art multiple antenna (MIMO) techniques
should be applied in a system context for next-generation wireless cellular networks.
Motivated by fundamental multiuser information theory results and using contemporary
packet-based cellular system simulation techniques, we systematically categorize the myriad
of MIMO options (include single-user, multiuser, and network MIMO techniques) and
describe the system design for maximizing system throughput in light of practical constraints
including complexity, bandwidth, power, fairness, and antenna size.
Scope
The tutorial is based on fundamental concepts drawn from information theory and
cellular system design. Therefore, the scope will encompass all next-generation cellular
networks and will not be limited to a particular standard.
Intended Audience
The target audience includes practicing engineers or academics
interested in applying state-of-the-art MIMO techniques in practical wireless systems.
Prerequisites are a familiarity with wireless communication theory. Knowledge of single-user
point-to-point MIMO theory and cellular system design is desirable but not necessary.
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Pre-Congestion Notification (PCN): Lightweight Admission Control and Flow Termination for the Future Internet
Presenters
DateSunday, 14 June 2009, 02:00 - 05:30 pm
Description
The Internet Engineering Task Force (IETF) proposes pre-congestion notification (PCN) as a base for lightweight
admission control and flow termination for the future Internet. PCN routers mark packets on a link when the rate
of prioritized PCN traffic exceeds the configurable admissible and/or supportable rate threshold of that link.
This marking feedback is evaluated and used to decide whether new flows can still be admitted to a network or
whether already admitted flows should be terminated. PCN-based admission control is a lightweight mechanism in
contrast to RSVP as it does not require per-flow states in the core of a network. PCN-based flow termination is
a new flow control function for networks with resilience requirements. When unexpected events such as network
failures and rerouting cause overload on normally admission-controlled links, the termination of some already
admitted flows may restore a controlled load condition. The basic principle is intuitive, but many possibilities
exist for the implementation of packet metering and marking functions, for admission control and for flow
termination methods. They have various pros and cons and simulation results give early insights into their
performance behaviour and applicability.
Scope
The tutorial explains the basic ideas of PCN-based admission control and flow termination,
points out architectural options, and discusses their pros and cons. The focus is on the
deployment models which are most likely to become standards.
Intended Audience
Network operators, manufacturers, scientists from companies and academia
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Iterative Receiver Design
Presenters
DateSunday, 14 June 2009, 02:00 - 05:30 pm
Abstract
Many researcher, students, and practicing engineers are familiar with iterative,
turbo-style processing but still often lack the knowledge of the underlying mathematical
framework. In this tutorial, we will provide a rigorous, yet accessible introduction to the
framework of factor graphs and how it can be used in developing iterative algorithms for
estimation and detection. We emphasize the use of the factor graphs for the design of
iterative receivers, with applications in decoding (e.g., turbo and LDPC codes), MIMO
detection, multi-user detection, and synchronization. This tutorial is highly interactive with
many examples and exercises.
Scope
The tutorial first covers basics of optimal Bayesian detection and factor graphs,
complemented with many examples. Then, factor graphs are applied to general inference
problems, and finally the connection is made with receiver design. This naturally leads to
iterative algorithms for decoding, demapping, and equalization. Relations with distributed and
cooperative processing in networks will also be mentioned.
Intended Audience
Graduate students, academic researchers, and practitioners in the
field. Background knowledge is limited to basic probability and notions of communication
theory.
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Thursday, 18 June 2009, 09:00 - 12:30 pm
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Cognitive Radio Networks: Key Concepts, Challenges, and Practical Approaches
Presenter
DateThursday, 18 June 2009, 09:00 - 12:30 pm
Description
"Cognitive radio" based on dynamic spectrum access is an emerging technique to
improve the utilization of radio frequency spectrum in wireless networks. Built upon
software-defined radio, it combines wireless communications and mobile networking
with signal processing, machine learning, optimization, and microeconomic models.
In this tutorial, an intensive introduction to the dynamic spectrum access-based
cognitive radio networks will be provided. Specifically, the basic concepts behind
"cognitive radio" technology, basic functionalities in a cognitive radio transceiver for
dynamic spectrum access, and different spectrum sharing models will be described.
A survey on the spectrum sensing techniques and the medium access control
(MAC)/rate-power control protocols will be presented. The key challenges, practical
approaches, and open problems in these areas will be discussed. Also a brief
summary on the ongoing standardization activities on cognitive radio will be provided.
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Ultrawide Bandwidth Active and Passive Localization: Fundamentals and Advanced Research Results with Case Studies
Presenters
DateThursday, 18 June 2009, 09:00 - 12:30 pm
Abstract
In this tutorial the theoretical fundamental limits in ranging and active/passive localization based on
the UWB technology, as well as practical schemes, will be explained. The main ranging/positioning
sources of errors such as multipath, clock offsets and interference will be illustrated. Some results
derived from measured data in real environments will be shown to investigate the effect of system
parameters on ranging and localization accuracy. Possible localization algorithms will be discussed
and their implementation in a real test bed will be shown as case studies. Finally, some advanced
issues such as cooperative localization and cognitive ranging will be addressed.
Scope
The scope of this tutorial is two-fold:
- to provide the basic theoretical background regarding fundamental limits in ranging and
positioning
- to understand the main sources of errors and describe the main practical solutions for
accurate ranging and localization in real environments.
Intended Audience
The tutorial is intended for all those researchers as well as system engineers who want to have a
systematic overview on short-range ranging and localization topics.
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Peer-to-Peer and Alternative Overlay Networks for Content and Service Provisioning on the Internet
Presenter
- Gerhard Hasslinger, T-Systems, Deutsche Telekom, Darmstadt, Germany
(and Darmstadt University of Technology, Germany)
DateThursday, 18 June 2009, 09:00 - 12:30 pm
Abstract
Among the basic features of peer-to-peer (P2P) networking applications are their ability
- to exploit vacant resources (data, storage, computation power, bandwidth) distributed over user equipment,
- to adapt to varying demands with scalability for huge communities, including dynamic flash crowds,
- to include replication of data for predefined requirements in self-organizing schemes,
- to build and manage overlays without or at a minimum of own network and server infrastructure and costs.
In this way, P2P overlays facilitate new Internet services to be launched globally, in addition to well-known and
popular P2P applications for file-sharing, content distribution, voice over IP and pod-/broadcasting of radio and TV.
In the present phase, well established P2P approaches compete with content delivery networks (CDN) and alternative
overlays in the deployment of future Internet services. Together with the efficiency of the distribution scheme, the
user acceptance as well as the involvement of content, service and network providers will decide on the preferable
schemes for support of Internet applications. While P2P solutions for file sharing and voice over IP are stabilizing in
popularity, solutions for video streaming and IP TV as well as business applications via P2P are still under a
challenging development.
The tutorial will address the current development in P2P and concurrent overlays for service provisioning from the
view of Internet service and network providers. It is structured into four main parts:
- Principles and efficiency of P2P networking for different Internet applications
- Measurement statistics on the Internet traffic mix and growth: Impact on network planning and management
- Cross layer issues: Infrastructure for broadband Internet access and overlay networks
- Established and evolving P2P services: Economic aspects and competition on future markets
Intended Audience
Engineers working in the development and management of broadband IP platforms are addressed as well as
application designers with focus on architectures and economic aspects for delivering future IP services.
The tutorial will start on an introductive level which is suited for students with a sound general background in
telecommunication corresponding to a Bachelor degree.
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Cooperative Vehicular Networking: Architecture and Protocols
Presenter
DateThursday, 18 June 2009, 09:00 - 12:30 pm
Abstract
There are several emerging applications that are specific to vehicular wireless networks. To be supported
efficiently, new communications protocols have to be developed and standardized. These protocols concern all
layers from physical to application layer and they are expected to provide both vehicle-to-vehicle and vehicle-to
infrastructure communications. The goal of this tutorial is to give a deeper and up-to-date technical analysis of
vehicular communication architectures and protocols. After giving the motivations and applications of vehicular
communications, this tutorial will emphasize on technical communication challenges and trends as well as recent
development on standardisation activities and existing prototypes and research projects.
Scope
Wireless vehicle-to-vehicle and vehicle-to-infrastructure cooperative communication is gaining an increasing
interest in the last few years. Indeed, several standardization bodies and initiatives have been initiated such
car-to-car communication consortium (C2C-CC) and Intelligent Car Initiative in Europe and Vehicular Infrastructure
Initiative (VII) in USA. Recently a technical committee focusing on Intelligent Transport Systems (ITS) has been
created at ETSI to develop standards for intelligent transportation.
There are several emerging applications that are specific to wireless vehicular networks. For instance, safety
applications would make driving safer; driver information services could intelligently inform drivers about
congestion, and businesses and services in the vicinity of the vehicle. To be supported efficiently, new
communications protocols have to be developed and standardized. These cooperative protocols concern all layers
from physical to application layer and they are expected to provide both vehicle-to-vehicle and vehicle-to
infrastructure communications. The goal of this tutorial is to give a deeper and up-to-date technical analysis
of cooperative wireless communications with a particular focus on communications protocols. After briefly
recalling the motivations and applications of cooperative vehicular communications, this tutorial will emphasize
on technical challenges and trends as well as recent development on standardization activities and existing
prototypes and research projects.
Participants working on the topic or willing to start working on it will learn the requirements for the
development of new communication architectures as well as the needed protocols to enable cooperative wireless
vehicular communications. Furthermore, participants will learn on-going research projects and standardization
bodies related to wireless vehicular communication. Technical discussions will focus on design of vehicular
communication architectures, reliable (geo)broadcasting techniques, (opportunistic) routing and data dissemination,
and delay-tolerant vehicular networks.
Intended Audience
Broad audience including students and researchers, engineers in the public and private sectors working in the broad area of wireless telecommunications and interested in an extensive technical overview of wireless vehicular communications and the future technical evolution and applications of this new challenging environment.
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Standardized IPTV services in Managed IP Infrastructures: An insight on approaches from the Telco & CE industry with a focus on NGN & IMS
Presenter
- Oliver Friedrich, Fraunhofer Institute for Open Communication Systems FOKUS, Berlin, Germany
DateThursday, 18 June 2009, 09:00 - 12:30 pm
Abstract
The vision of convergent telecommunication and broadcast services is driving the notion of
all-IP networks. This evolution leads to move the classic telecommunication and broadcast
environments towards an integrated programmable broadband network environment. The service
convergence will enable the provisioning of (interactive) multimedia applications with the
integration of telecommunication capabilities (e.g. audio/video telephony, presence,
messaging, etc.). In combination with TV services (Linear TV and Video on Demand) this yields
into so called triple play (data, VoIP and IPTV) and quadruple play (including mobility aspects)
environments. This tutorial will highlight the different aspects towards a standardized IPTV
world by presenting insights onto SDO work, reference architectures and signaling as well as
real world prototypes and test beds.
Intended Audience
Information given in this tutorial will address professionals from this field of research and
but also fields of application in getting a deep insight into IPTV standardization, service
signaling, service creation, prototyping and usability. Prerequisite telecommunications knowledge
is not mandatory but will help to understand some of the aspects more deeply.
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Thursday, 18 June 2009, 02:00 - 05:30 pm
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Channel Coding for IEEE 802.16e Mobile WiMAX
Presenter
DateThursday, 18 June 2009, 02:00 - 05:30 pm
Abstract
As specified by the IEEE 802.16e-2005 standard, Mobile WIMAX must use one of four types of
channel codes: A tail-biting convolutional code, a block turbo code (BTC), a convolutional turbo code (CTC),
or a low-density parity-check code (LDPC). This tutorial will provide an overview of each of these categories
of codes, highlighting their similarities and differences. The main focus will be on algorithms and architectures
for encoding and decoding, as well as the specifics of the standard. Throughout the tutorial, encoding and
decoding will be demonstrated within Matlab using a simulator developed by the instructor. The Matlab code
is available for download by tutorial participants, so that they may leave the tutorial with a tangible set of tools.
Scope
Students of this tutorial will leave with an understanding of how to encode and decode the four error
control codes that are in the IEEE 802.16e standard. In the interest of time, encoding will be discussed first
and will be completely covered. Decoding will necessarily need to move at a faster pace, but students who
already know the Viterbi algorithm should be able to comprehend the discussion of decoding.
Intented Audience
The intended audience are engineers ordinarily skilled in the art of communications
who need to implement the codes that are in the IEEE 802.16e standard. A typical student will be a staff
engineer in industry or a graduate student. In terms of expectations, students should have had an introductory
course in Coding Theory where they have covered the basics of convolutional encoding, Viterbi decoding, and
parity-check matrices. A student who has not had Coding Theory should still be able to comprehend the first
half of the course, where encoding is discussed in a very straightforward manner.
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Self-organized Network Economics
Presenter
- Sonja Buchegger, Deutsche Telekom Laboratories, Berlin, Germany
DateThursday, 18 June 2009, 02:00 - 05:30 pm
Abstract
Tools from economics and lessons from their applications in networking can
help the networking community in both design and performance analysis.
This tutorial gives an introduction to some of these tools and methods
from economics and their applications to self-organized networks.
Economics and network design have always been intimately intertwined. The
infrastructural nature of networks, the decentralization of ownership and
control, and the derivation of utility by heterogeneous users and
applications, all point to the need for incorporating economic considerations
into the design of networks.
Scope
In this tutorial we explore the many different areas in which network design
and economics intersect, including: economic characteristics of networks, modeling
strategic behavior in network games, information asymmetries in networked
environments, incentive engineering and market-based resource allocation,
etc., with applications to wireless, peer-to-peer, ad-hoc, vehicular
and overlay networks, online social networks, and network security, etc.
Intended Audience
Both real-world network designers and researchers of networking protocols and performance
evaluation would gain insights into an economics perspective on self-organized computer
networks and vice versa, i.e. how economics can inform networking as well as in the
opposite direction what economic effects result from particular networking design decisions.
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The Internet of Things Goes Wireless
Presenters
DateThursday, 18 June 2009, 02:00 - 05:30 pm
Abstract
The next wireless revolution is quietly coming and with it an epochal turnpoint in network
design. Networking in the near future is no more limited to “just” the provision of a
communication infrastructure. This change in design will drastically augment with the
foreseen emergence of the Internet of Things. It will connect a large amount of highly
resource constrained, highly heterogeneous set of nodes ubiquitously communicating in
a wireless fashion. The aim of this tutorial is to expose an industrial and academic
audience to the cutting-edge R&D challenges associated with the protocol-related
analysis and design of this disruptive technology.
Scope
This tutorial aims to shed some light on this disruptive technology from a wireless
design point of view. We will discuss the reasons why these networks have and will
continue having such a tremendous upsurge in both industry as well as academia and
why they offer unprecedented opportunities. We will dwell in-depth on the many
significant design challenges these networks face, such as to lower algorithmic
complexity to facilitate low-power solutions that can be embedded into low-cost
microprocessors, and to extend the lifetime of the network without jeopardizing reliable
and efficient communications from nodes to other nodes as well as to data sinks. We will
structure the tutorial in three parts: the first part is dedicated to the background of the
Internet of Things (milestones, business case, standardization); the second part deals
with node and network design (channel, PHY, MAC, NTW, cross-layer design); and the
third part is dedicated to practical experiments and lessons learned there from.
Intended Audience
This tutorial is tailored to the level of practicing engineers and advanced researchers
with both academic and industrial background who are interested in the fundamentals
and design of embedded networks, such as wireless sensor networks, which facilitate
the Internet of Things. With an expected market size of approximately $2b by 2012 at a
compound annual growth rate of 41.9%, these networks are gaining seriously in
momentum in both the academic and industrial communities. It is hence anticipated that
this tutorial will be very well attended.
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DVB-T2: Key Technologies and Implementation Issues
Presenters
DateThursday, 18 June 2009, 02:00 - 05:30 pm
Abstract
The tutorial provides an overview of the new digital broadcasting television standard for terrestrial
transmission (DVB-T2) to be standardized by European telecommunication standard institute (ETSI).
Standard potentials and implementation issues are discussed and main challenges that call for advanced
signal processing and architecture design are be outlined. The tutorial focuses on key technologies
underlying the standard, including advanced modulation techniques, coding and multiple antenna
technologies. For a practical realization of the receiver, possible implementation architectures are also
provided, discussing implementation issues and proposing software defined radio solutions.
Scope
System design of transmitters and receivers for broadcasting applications.
Intended Audience
Hardware and software designers; senior scientists and engineers of R&D departments.
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