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Diversity-Multiplexing Tradeoff Analysis for a Dynamic Decode and Forward Relay Protocol with MIMO Channels
Taeyoung KIM Sun-Yong KIM Eunchul YOON
IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
diversity-multiplexing tradeoff, relay, dynamic decode and forward, half duplex, MIMO,
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In this letter, the diversity-multiplexing tradeoff (DMT) function for a special half-duplex dynamic decode and forward (DDF) relay protocol using two source-antennas, two destination-antennas, and more than two relay-antennas is derived. It is shown that the performance of the DDF relay protocol can be substantially improved by increasing the relay-antenna number, but only for low multiplexing gains.