Capacity Based Fast Receive Antenna Subset Selection in MIMO System

Wei GUAN  Hanwen LUO  Haibin ZHANG  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.6   pp.2049-2052
Publication Date: 2008/06/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.6.2049
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
MIMO,  antenna selection,  capacity,  complexity,  

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In this letter, we develop a two-step receive antenna selection method to maximize channel capacity. Different from previous work, we first derive a lower bound on capacity based on Hadamard inequality and arithmetic-geometric mean inequality, which is then used to iteratively drop the worst-performing antennas according to their measure. The recursive nature of this method helps to largely reduce the computational complexity.