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An Exact BER Analysis of Dual-Hop MIMO Decouple-and-Forward Relaying with Orthogonal Space-Time Block Codes  

Lee, Jae-Hoon (한양대학교 전자전기제어계측공학과 이동통신망연구실)
Kim, Dong-Woo (한양대학교 전자컴퓨터공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.12A, 2008 , pp. 1147-1155 More about this Journal
Abstract
In this paper, we derive the probability density function (PDF) of end-to-end signal-to-noise ratio (SNR) for t he dual-hop MIMO (Multiple-Input Multiple-Output) DCF (Decouple-and-Forward) system. We also provide the end-to-end bit error ratio (BER) with M-ary PSK constellations for four antenna combinations. These are (1,8,1), (8,1,8), (2,4,2), and (4,2,4). Each number in the parentheses is the number of the transmit antenna at the source, the transmit and receive antenna at the relay and the receive antenna at the destination, respectively. We show t hat the end-to-end BER expression with M-ary PSK constellations makes an exact match with numerical results. We also show that MIMO DCF relay system achieves spatial diversity.
Keywords
OSTBC; MIMO; Relay; Amplify-and-Forward; Decode-and-Forward; Decouple-and-Forward; end-to-end BER;
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