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IEEE PIMRC'14 TUTORIALS - Tuesday September 2nd

T1: Realizing Interference Alignment – Practical Concerns

Time: 9:00 – 12:40 | Room: South American A

Instructors: Cenk M. Yetis (Mevlana University, Turkey), Murat Torlak (University of Texas at Dallas, USA)

The growing trends in telecommunications industry, e.g., internet of things, sensor networks, 5G, and machine-to-machine communications, have made interference management a core topic in wireless networks. Interference alignment (IA) is a supreme technique achieving the optimal degrees of freedom (DoF) for many network types. While IA is an effective theoretical tool, there is a perception that its stringent conditions compromise its practicality in real life. In this tutorial, we review five years of IA and show that many practical IA drawbacks have been addressed. In particular, we will cover
  1. Algorithm aspects:  feasibility conditions and complexity,
  2. IA design under practical conditions: imperfect/delayed CSI, correlated/asymmetric channels, finite signal-to-noise ratio (SNR) regime, and bit error rate (BER),
  3. IA applications: interference, X, relay, cellular, heterogeneous, and multi-hop networks.Furthermore, we analyze the design and performance of IA algorithms under practical conditions, and survey active IA testbeds worldwide.

CANCELED T2: Heterogeneous and Hyper Small Cells Technologies in LTE Advanced and Beyond

Time: 9:00 – 12:40 | Room: South American B

Instructors:  Li-Chun Wang (National Chiao Tung University, Taiwan), Chiung-Jang Chen (Chunghwa Telecom Laboratories, Taiwan)
In this tutorial, we discuss how hyper small cells play a key role in the next generation wireless systems.  We first give an overview on various deployments scenarios of small cells and heterogeneous networks (HetNet) in the standard of the 3GPP LTE Advanced. HetNet faces a very complicated interference scenario because of utilizing a mix of macrocells, remote radio heads (RRH) and low-power nodes such as picocells, femto-cells, and relay. Energy efficiency is also another critical issue for HetNet because of high operation cost. Thus we will focus on the following issues and their potential solutions:
(1)     Current 3GPP enhanced Inter-cell interference cancellation techniques (eICIC);
(2)     Other advanced interference mitigation techniques in HetNet, such as  joint beamforming and power allocation, and interference alignment;
(3)     Optimal small cell density analysis using stochastic geometry approach
Last, we highlight the potential research issues in radio access technologies for 5G wireless to conclude this tutorial.

CANCELED T3: Architectures, Models and Networks for Electric Vehicles in the Smart Grid

Time: 9:00 – 12:40 | Room: Pan American  

Instructors: Hussein Mouftah (University of Ottawa, Canada), Melike Erol-Kantarci (University of Ottawa, Canada)

Electric vehicles pose a number of challenges to the smart grid due to their heavy charging load while vehicle batteries emerge as promising Distributed Energy Resources (DERs) that can be used for the benefit of the smart grid. Challenges and opportunities emerging from electric vehicle integration to the smart grid brought forward numerous recent works that address architectures, models and networks to enable communications and control for electric vehicles. Electric vehicle and smart grid interaction is a newly flourishing research field receiving significant attention from communications, power and automotive societies. This tutorial aims to furnish the audience with the essential tools to understand the fundamentals of electric vehicles and their interaction with the smart grid, introduce the state-of-the-art architectures, models and networks for electric vehicle infrastructure and provide a comprehensive list of open issues. Utility operators, telecom operators, electric vehicle OEMs, electric vehicle service providers, university professors, researchers and students are among the target audience. The tutorial will start with fundamental definition of the electric vehicles and the smart grid concepts and gradually move on to more advanced topics including queuing models, network calculus, optimization models and communication networks. Non-expert audience will be smoothly guided to advanced topics while a balance will be maintained for expert users who already have a basic understanding of smart grid and willing to master the recent advances and learn the open issues in the subject matter.   

T4:  Spatial Modulation for MIMO Wireless Systems

Time: 14:00 – 17:50 | Room: South American A

Instructors: Marco Di Renzo (University of Paris-Sud XI, France), Harald Haas (University of Edinburgh, UK), Ali Ghrayeb (Concordia University, Canada)

The key challenge of future mobile communications research is to strike an attractive compromise between wireless network’s area spectral–efficiency and energy–efficiency. This necessitates new approaches to wireless system design, embracing the rich body of existing knowledge especially on Multiple–Input–Multiple–Output (MIMO) technologies. In the proposed tutorial, we intend to describe a new and emerging concept to wireless system design, which is conceived for single–RF large–scale MIMO communications and it is best-known as Spatial Modulation (SM). The concept of SM has established itself as a beneficial transmission paradigm, subsuming numerous members of the MIMO system–family. The research of SM has reached sufficient maturity to motivate its comparison to state–of–the–art MIMO communications, as well as to inspire its application to other emerging wireless systems such as relay–aided, cooperative, small–cell, optical wireless and power–efficient communications. Furthermore, it has received sufficient research attention to be implemented in testbeds, and it holds the promise of stimulating further vigorous inter–disciplinary research in the years to come. The proposed tutorial is intended to offer a comprehensive state–of–the–art survey on SM–MIMO research, to provide a critical appraisal of its potential advantages, and to promote the discussion of its beneficial application areas and their research challenges leading to the analysis of the technological issues associated with the implementation of SM–MIMO. The tutorial is concluded with the description of the world’s first experimental activities in this vibrant research field. This tutorial is based on the following publication: “M. Di Renzo, H. Haas A. Ghrayeb, S. Sugiura, L. Hanzo, “Spatial Modulation for Generalized MIMO: Challenges, Opportunities and Implementation”, Proceedings of the IEEE, vol 102, no. 1, pp. 56-103, Jan. 2014.

T5: Network Science and Wireless Networks

Time: 14:00 – 17:50 | Room: South American B

Instructor: Kwang-Cheng (K.C.) Chen (National Taiwan University, Taiwan)

Network science has been shown great potential in diverse comprehension of Internet, data analytics, complex systems, nonlinear dynamics, molecular biology, social systems and science, and human behavior, since its birth in 1999. With social media dominating the Internet traffic and wide applications of Internet of Things (IoT), it is of great interests in understanding its applications to wireless networks and wireless communication systems. To avoid rather difficult background in physics and mathematics, this tutorial shall supply basic and intuitive understanding regarding the scientific background of network science, and then complement wireless networking examples to demonstrate its applications, so that audience may comprehend the fundamental and realistic connection between network science and wireless networks, to possibly advance and even to revolution next generation wireless communication technology and IoT deployment. From basic random graphical analysis with the help of stochastic geometry, we will demonstrate applying the knowledge of network science to ad hoc networks, sensor networks, cognitive radio networks, resilient networks, wireless heterogeneous networks, and massive machine-to-machine communications.

T6: 4G and Beyond: LTE and LTE-Advanced

Time: 14:00 – 17:50 | Room: Pan American

Instructor: Hyung G. Myung (Qualcomm, USA)

The 3rd generation (3G) cellular wireless systems have been evolving into 4th generation (4G)
over the recent years. As a pathway to 4G, 3GPP developed Long Term Evolution (LTE). In terms
of air interface techniques, LTE system uses OFDMA-based multicarrier modulation, MIMO
techniques, and other advanced features to greatly improve the mobile wireless services.
In this tutorial, we first survey the underlying techniques of the 4G systems such as OFDMA, SC-
FDMA, MIMO, and fast multi-carrier resource scheduling. Then, we give technical overview of
LTE and LTE-Advanced. We also survey upcoming beyond-4G technologies.







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