EURASIP Journal on Advances in Signal Processing
Link-adaptive distributed coding for multisource cooperation
EURASIP Journal on Advances in Signal Processing
Efficient cooperative transmission scheme for resource-constrained networks
Proceedings of the 6th ACM international symposium on Mobility management and wireless access
Recovering Multiplexing Loss through Concurrent Decode-and-Forward (DF) Relaying
Wireless Personal Communications: An International Journal
Randomized space-time block coding with limited feedback
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
IEEE Transactions on Wireless Communications
IEEE Transactions on Wireless Communications
Efficient power allocation for decentralized distributed space-time block coding
IEEE Transactions on Wireless Communications
On the outage probability in amplify-and-forward relay channels
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Adaptive multi-node incremental relaying for hybrid-ARQ in AF relay networks
IEEE Transactions on Wireless Communications
Practical and general amplify-and-forward designs for cooperative networks
INFOCOM'10 Proceedings of the 29th conference on Information communications
Blind cooperative diversity using distributed space-time coding in block fading channels
IEEE Transactions on Communications
Bypassing orthogonal relaying transmissions via spatial signal separation
IEEE Transactions on Communications
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This paper addresses some of the opportunities and the challenges in the design of multi-hop systems that utilize cooperation with one or two intermediate regenerative relays to provide high-quality communication between a source and a destination. We discuss the limitations of using a distributed Alamouti scheme in the relay channel and the additional complexity required to overcome its loss of diversity. As an alternative to the distributed Alamouti scheme, we propose and analyze two error aware distributed space-time (EADST) systems built around the Alamouti code. First, using a bit error rate based relay selection approach, we design an EADST system with one and two regenerative relays that rely on feedback from the destination and we show that the proposed system improves on the distributed Alamouti scheme. In addition, we prove that the proposed one relay EADST system collects the full diversity of the distributed MISO channel. Second, we introduce an EADST system without feedback in which the relaying energies depend on the error probabilities at the relays. Numerical results show that both EADST systems perform close to the error probability lower bound obtained by considering error-free reception at the relays