Multi-Antenna Cooperative Systems With Improved Diversity Multiplexing Tradeoff

Provided by: Institute of Electrical & Electronic Engineers
Topic: Mobility
Format: PDF
While Half-Duplex cooperative systems provide an alternative means to achieve diversity gain, they suffer from multiplexing gain loss due to the necessary two-phase transmission protocols that are employed. In this paper two new transmission techniques are presented for systems with multi-antenna relay nodes employing the Decode-and-Forward (DF) protocol which achieve improved multiplexing and diversity gains. The first technique extends to the multi-antenna relays case the authors' previous work for single-antenna relay nodes and is based on the channel's matrix Singular Value Decomposition (SVD).

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