Sunday, 5 April 2009
09:00 – 12:30
T01: Backscatter Radio and RFID: Principles and Applications
Presenter: Gregory D. Durgin, Georgia Tech, USA
Abstract: The technology behind Radiofrequency Identification (RFID) has shown tremendous recent improvements in chip processing, RF chain hardware, and signaling that will enable many future applications in identification, tracking, passive data exchange, sensor telemetry, and last-leg personal area networking. This tutorial will discuss the history, future, and current physical-layer workings of these types of RF systems which are capable of exchanging information with wireless nodes that have little-to-no power source. The first-principles approach in this lecture will help engineers, researchers, and technologists of varying backgrounds understand the technical issues of RF tag communication and how they affect applications.
Sunday, 5 April 2009
09:00 – 12:30
T02: Game Theory and Resource Allocation in Wireless Communications
Presenters: Marco Luise and Giacomo Bacci, University of Pisa, Italy
Abstract: The ever-increasing demand for reliable and ubiquitous high-speed data services calls for new challenges in the design of wireless communication networks. In the near future, wireless networks are expected to support a variety of applications with different quality of service (QoS) constraints. In the last two decades, considerable effort has been made to providing efficient schemes to address resource allocation issues, possibly involving cross-layer optimization. Such design and optimization methods are benefiting from the adoption of sophisticated signal processing techniques at large. Recently, game theory has emerged as an effective framework for the design of a wireless network. Traditionally, the main areas of application of game theory have been economics, political science, biology and sociology, but recently, it has also been widely used in telecommunications and wireless communications. This tutorial provides an overview of the relevant applications of game theory in wireless communications, focusing on noncooperative (distributed) techniques. An important feature of the noncooperative approach is the inherent de-centralization of the algorithms, which allows each user to individually choose its own strategy (e.g., power transmit level at the physical layer, bandwidth allocation at the medium access layer, packet forwarding at the network layer) through a simple noncooperative scheme. Distributed (noncooperative) solutions are in general suboptimal with respect to those obtained via a centralized (cooperative) approach, but they are well suited to a many-node network due to their intrinsic scalability and the simplicity of the relative solutions. The complete de-centralization of the resource allocation scheme allows for the total absence of an infrastructure, which is highly desirable to extend game-theoretic techniques to the design of wireless ad hoc networks.
Sunday, 5 April 2009
09:00 – 12:30
T03: Ranging Techniques with Applications to Active and Passive Localization: Fundamentals, Advanced Research Result, and Case Studies
Presenters: Davide Dardari, University of Bologna, Italy
Andrea Conti, University of Ferrara, Italy
Andrea Giorgetti, WiLAB, DEIS, University of Bologna, Italy
Abstract: The tutorial will cover the following topics:
- Active and Passive Positioning Basics
- Range, Angle and Proximity-Based Positioning
- Theoretical Performance Limits
- Ranging: Time-Based, Time Difference-of-Arrival (TDOA), Received
Signal Strength (RSS)
- Error Sources in Ranging: Multipath Channel, Interference, Excess
Delay, NLOS Propagation
- Theoretical Performance Llimits on Ttime-of-Arrival (TOA) Estimation
- Theoretical Performance Limits in the Presence of Multipath
- Performance of Practical (TOA) Estimators in Realistic Conditions:
The Effect of Multipath, Interference and Bandwidth
- Cooperative Localization
- Anti-Intruder Multi-Sstatic Radar Systems
- Case Studies
Sunday, 5 April 2009
09:00 – 12:30
T04: Key Enabling Technologies Towards IMT-Advanced: Cooperative Communications and Relaying in MIMO-OFDMA Systems
Presenters: Chia-Chin Chong, DOCOMO USA Labs, USA
Yuefeng Zhou, NEC Europe, Germany
Abstract: This tutorial will focus on the fundamentals, motivating applications, and peculiarities of multi-hop relaying and cooperative communications in MIMO-OFDMA based system in order to improve the coverage and capacity in mobile broadband wireless networks. Other advanced technologies, such as HARQ, MIMO, AAS and FFR will also be discussed. A quantitative discussion on system performance will be provided to further elaborate the peculiarities of these advanced technologies.
Sunday, 5 April 2009
09:00 – 12:30
T05: Mobile-to-Mobile Fading Channels
Presenter: Gordon Stuber, Georgia Tech, USA
Abstract: Mobile-to-mobile (M-to-M) communication channels play an important role in mobile ad-hoc wireless networks, vehicle-to-vehicle communications, advanced relay-based cellular networks, and other applications. The statistical properties of M-to-M fading channels are quite different from conventional fixed-to-mobile cellular land mobile radio channels. M-to-M communication systems are typically equipped with low elevation antennas on both ends of the link, and both the transmitter and receiver are in motion. A solid understanding of M-to-M channels is necessary for designing reliable M-to-M communication systems and networks. This tutorial deals with modeling, analysis, simulation, and measurements of M-to-M fading channels. Both single-input single-output (SISO) and multiple-input and multiple-output (MIMO) M-to-M fading channels are treated in detail. The tutorial first begins with an introduction to the basic concepts of fading channel modeling and statistical characterization of fading channels. We then consider SISO M-to-M channel modeling and analysis, along with deterministic and statistical sum-of-sinusoids-based channel simulators. Afterwards, we will consider 2-D and 3-D MIMO M-to-M channel modeling, analysis, sum-of-sinusoids-based simulation, and model verification based on MIMO M-to-M channel sounding. Both narrow-band and wide-band MIMO M-to-M channels will be considered. The tutorial will be valuable for scientists and engineers, and Ph.D. students currently working in the area of fading channel modeling in general and M-to-M channel modeling in particular. The tutorial will also be valuable for practicing engineers that are developing M-to-M systems and standards.
Sunday, 5 April 2009
14:00 – 17:30
T06: Baseband Algorithms and Architectures for Cooperative MIMO Systems with Applications to Evolving System Standards
Presenters: Markku Juntti, University of Oulu
Joseph Cavallaro, Rice University
Abstract: The tutorial covers multiple-input multiple-output (MIMO) and cooperative communication based on multiple antennae with an emphasis on the transceiver algorithms, architectures, and implementations. Application examples include the third generation (3G) cellular communication systems, its advanced Long Term Evolution (LTE), Worldwide Interoperability for Microwave Access (WiMAX) systems and evolving International Mobile Telecommunication (IMT) standards beyond those known as IMT-A. The basic concepts MIMO and cooperative communications are reviewed briefly. Sphere detection based detectors for forward error control (FEC) coded communications, linear equalizers and interference cancellation with the soft feedback or turbo principle based receivers are given most emphasis.
Sunday, 5 April 2009
14:00 – 17:30
T08: High-Definition Location-Awareness
Presenters: Moe Z. Win and Henk Wymeersch
Massachusetts Institute of Technology, USA
Abstract: The availability of positional information is of vital importance in many commercial and military applications, including asset tracking, search-and-rescue operations, and personal navigation. The coming years will see the emergence of high-definition location-awareness (HDLA) with sub-meter accuracy and minimal infrastructure requirements, operational in even challenging indoor environments. HDLA relies on a combination of ultra-wide bandwidth (UWB) transmission and cooperative peer-to-peer (P2P) algorithms. In this tutorial, we consider cooperative localization in UWB networks from three points of view: fundamental performance bounds, cooperative algorithms, and experimentation. Fundamental bounds can serve as performance benchmarks, and as a tool for network design. Cooperative algorithms achieve drastic performance improvements with respect to traditional non-cooperative localization. In order to harness these benefits, we must consider realistic operational settings. To this end, we have performed extensive measurement campaigns with UWB radios.
Sunday, 5 April 2009
14:00 – 17:30
T09: Security for 3GPP’s Evolved Packet System - A Fourth Generation System
Presenters: Günther Horn, Nokia Siemens Networks, Germany
Marc Blommaert, Devoteam Telecom & Media, Belgium
Dan Forsberg, Nokia Corporation, Finland
Abstract: The tutorial focuses on the security for the Evolved Packet System EPS (formerly called “SAE”) as defined by 3GPP , but extends also to other types of mobile systems, such as WiMAX or eHRPD , by showing how these can be connected to the Evolved Packet Core. EPS is of general interest beyond the 3GPP world as it enables the seamless interoperation of heterogeneous access networks, with security providing an important part of the glue. The tutorial will cover the security for the radio access part as well as the core network part in detail. The tutorial will highlight in particular the security innovations in EPS, including cryptographic network separation and forward security in handovers.
Sunday, 5 April 2009
14:00 – 17:30
T010: Wireless Vehicular Networks: An In-Depth Overview and Research Challenges
Presenter: Fethi Filali, Institut Eurécom
Abstract: The goal of this tutorial is to give a deeper and up-to-date technical analysis of wireless vehicular communications. After giving the motivations and applications of 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.
