Optimum Antenna Selection with Doubly ZF Processing for AF MIMO Relay Systems

Ming DING  Shi LIU  Hanwen LUO  Wuyang JIANG  Jing LV  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.3   pp.762-765
Publication Date: 2010/03/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.762
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
AF,  MIMO relay,  relay/antenna selection,  

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In this letter, we propose a novel antenna selection algorithm for amplify-and-forward (AF) multiple-input multiple-output (MIMO) relay systems with Zero-Forcing (ZF) processing applied both at the source node and at the destination node. We obtain the optimum antenna selection criterion by deriving an iterative closed-form expression for capacity maximization.