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In this paper, the impact of diversity order on symbol error rate (SER) performance is investigated for the cooperative amplify-and-forward (AF) multiple-input-and-multiple-output (MIMO) relaying system under the average power scaling (APS) constraints. Furthermore, the optimal power allocation (OPA) scheme is proposed based on the criterion of maximizing signal-to-noise-ratio (SNR). Through the SER...
A novel transmission scheme that mixes half-duplex decode-and-forward relay transmission (RT) with direct transmission (DT) is proposed for a MIMO relay channel. In this scheme, the source message is divided into two parts: one for DT and the other for RT. Preceding and decoding schemes are considered to convert the original relay channel into several parallel subchannels so that resource allocation...
Cooperative communication techniques promise the advantages of MIMO (multi-input multi-output) communications for wireless scenarios with single-antenna terminals. A main assumption in majority of the existing literature on cooperative communications is the availability of channel state information at the receiver. In practice, knowledge of the channel is obtained by sending known training (pilot)...
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