Series in Communication Theory
Edited by Helmut Bölcskei
Spatial Multiplexing in Multiuser Networks with Limited Feedback.
1st edition 2009. XX, 184 pages; € 64,00. ISBN 978-3-86628-268-1
Spatial multiplexing is a well-known transmission technique for achieving high data rates in multiuser wireless networks. The benefits of spatial multiplexing are however quite limited in practice because of the lack of perfect channel knowledge at the sources. The present work shows that, in fact, the full gains of spatial multiplexing can be obtained in several important classes of multiuser networks even without perfect channel knowledge at the sources, provided that there exists feedback links of sufficient capacity from the destinations to the sources. In particular, four important classes of multiuser networks are investigated in detail, and feedback and transmission strategies are proposed for achieving full spatial multiplexing gains in each of these classes.
About the Author
Jatin Thukral received his B.Tech. degree in Electrical Engineering from the Indian Institute of Technology Madras, India, in 2003, and his M.Sc. and Dr. Sc. degrees in Electrical Engineering and Information Technology from the Swiss Federal Institute of Technology (ETH) Zurich, Switzerland, in 2005 and 2009, respectively. He worked as a research assistant at the Illinois Institute of Technology, Chicago, in 2002 and as a research and development engineer at Tejas Networks Limited, Bangalore, in 2003. Dr. Thukral is a recipient of the Willi-Studer Prize for outstanding performance in his post-graduate studies at ETH.
Keywords: Spatial multiplexing, limited feedback, broadcast networks, interference networks, interference alignment
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