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Linear Precoding Technique for Cooperative MIMO Communication Systems Using Selection-Type Relaying  

Yoo, Byung-Wook (School of Electrical and Electronic Engineering Yonsei University)
Lee, Chung-Yong (School of Electrical and Electronic Engineering Yonsei University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.11, 2010 , pp. 24-29 More about this Journal
Abstract
Selection-type relaying protocol, which is one of cooperative relaying protocols, provides low decoding complexity and improved system performance due to selection diversity. In this paper, we deal with linear precoding technique that minimize the error probability of cooperative MIMO system. Under the assumption that full channel state information is available at whole nodes, linear source and relay precoders, which minimize mean squared error of the estimated symbol vector, are proposed. Moreover, unlikely to the conventional selection-type relaying protocol using a fixed threshold signal-to-noise-ratio, new transmission link selection algorithm selects direct link or relay link as a transmission link, is introduced. Simulation results show that the proposed linear precoder with the transmission link selection algorithm outperforms the conventional precoders for two-hop relaying protocols or selection-type relaying protocols.
Keywords
Cooperative MIMO systems; linear precoder; minimum post-processing SNR; MMSE receiver;
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Times Cited By KSCI : 1  (Citation Analysis)
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