Transmission in MIMO OFDM Point to Multipoint Networks

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Author(s): Wolfgang Utschick (Technische Universität München, Germany), Pedro Tejera (Technische Universität München, Germany), Christian Guthy (Technische Universität München, Germany)and Gerhard Bauch (DOCOMO Communications Laboratories Europe GmbH, Germany)
Copyright: 2009
Pages: 24
Source title: Handbook on Advancements in Smart Antenna Technologies for Wireless Networks
Source Author(s)/Editor(s): Chen Sun (ATR Wave Engineering Laboratories, Japan), Jun Cheng (Doshisha University, Japan)and Takashi Ohira (Toyohashi University of Technology, Japan)
DOI: 10.4018/978-1-59904-988-5.ch016

Keywords: Information Science Reference / Media & Communications / Mobile and Wireless Computing / Wireless Systems

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Abstract

This chapter discusses four different optimization problems of practical importance for transmission in point to multipoint networks with a multiple input transmitter and multiple output receivers. Existing solutions to each of the problems are adapted to a multi-carrier transmission scheme by considering the special structure of the resulting space-frequency channels. Furthermore, for each of the problems, suboptimum approaches are presented that almost achieve optimum performance and, at the same time, do not have the iterative character of optimum algorithms, i.e., they deliver a solution in a fixed number of steps. The purpose of this chapter is to give an overview on optimum design of point to multipoint networks from an information theoretic perspective and to introduce non-iterative algorithms that are a good practical alternative to the sometimes costly iterative algorithms that achieve optimality.

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Transmission in MIMO OFDM Point to Multipoint Networks

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