Diversity and Multiplexing in Cooperative Wireless Cellular Networks

9 years 19 days ago
Diversity and Multiplexing in Cooperative Wireless Cellular Networks
Abstract— In wireless cellular systems, capacity can be increased if both in-cell and out-of-cell cochannel interference (CCI) is properly handled. Moreover, spatial multiplexing has been proved to be much effective in multiuser MIMO systems. In [1], the authors propose a cross-layer approach to opportunistic interference management and spatial multiplexing, by using a random beamforming strategy and a smart scheduler assuming a certain degree of cooperation between transmitters. In this paper, we recall the resource allocation algorithm, we derive the PDF and CDF of the SINR of a simplified cooperative multiuser MIMO system and we discuss some numerical results. In particular, we examine the tradeoff between spatial diversity and multiplexing as a function of the out-of-cell CCI level. Numerical results show that, for high out-of-cell interference,a larger throughput is achieved if at most one user is scheduled at a time in each cell. Otherwise, spatial multiplexing must be used to...
Diego Piazza, Guido Tartara
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where ICC
Authors Diego Piazza, Guido Tartara
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