MIMO Spatial Spectrum Sharing for High Efficiency Mesh Network

Fumie ONO  Kei SAKAGUCHI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.1   pp.62-69
Publication Date: 2008/01/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.1.62
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: Spectrum Sharing
Keyword: 
mesh network,  MIMO,  spatial spectrum sharing,  bi-directional link multiplexing,  interference cancellation,  

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Summary: 
In this paper, an architecture of MIMO mesh network which avoids co-channel interference and supplies link multiplexing simultaneously, namely MIMO spatial spectrum sharing, is proposed. As a MIMO transmission scheme, linear (such as zero-forcing) and nonlinear (such as dirty paper coding and successive interference cancellation) MIMO algorithm are developed for the proposed mesh network. It is found from numerical analysis that the proposed MIMO mesh network achieves significantly higher channel capacity than that of conventional mesh networks.