Wireless Communications
Wireless Personal Communications: An International Journal
Decode-and-forward cooperative networks with multiuser diversity
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Exact symbol error probability of a Cooperative network in a Rayleigh-fading environment
IEEE Transactions on Wireless Communications
Modulation and demodulation for cooperative diversity in wireless systems
IEEE Transactions on Wireless Communications
Diversity order analysis of the decode-and-forward cooperative networks with relay selection
IEEE Transactions on Wireless Communications - Part 2
Low complexity and fractional coded cooperation for wireless networks
IEEE Transactions on Wireless Communications - Part 2
Threshold Selection for SNR-based Selective Digital Relaying in Cooperative Wireless Networks
IEEE Transactions on Wireless Communications - Part 1
Asymptotic BER analysis of threshold digital relaying schemes in cooperative wireless systems
IEEE Transactions on Wireless Communications - Part 1
Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Cooperative communication in wireless networks
IEEE Communications Magazine
A simple Cooperative diversity method based on network path selection
IEEE Journal on Selected Areas in Communications
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This paper investigates a wireless cooperative relay network with multiple relays communicating with the destination over orthogonal channels. Proposed is a cooperative transmission scheme that employs two signal-to-noise ratio (SNR) thresholds and multiple hard-decision detections (HDD) at the destination. One SNR threshold is used to select transmitting relays, and the other threshold is used at the destination for detection. Then the destination simply combines all the hard-decision results and makes the final binary decision based on majority voting. Focusing on the decode-and-forward (DF) relaying protocol, the average bit error probability is derived and diversity analysis is carried out. It is shown that the full diversity order can be achieved by setting appropriate thresholds even when the destination does not know the exact or average SNRs of the source-relay links. The performance analysis is further extended to multi-hop cooperation and/or with the presence of a direct link where multiple thresholds are needed. By combining themultiple-SNR threshold method with a selection of the best relaying link, a high spectralefficiency cooperative transmission scheme is further presented. Simulation results verify the theoretical analysis and demonstrate performance advantage of our proposed schemes over the existing ones.