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Technical University of Crete
Technical University of Crete
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| URI | http://purl.tuc.gr/dl/dias/D4EFC706-5B4F-4FFC-8CD4-8222208DE71C | - |
| Identifier | https://doi.org/10.1109/TWC.2007.06020050 | - |
| Identifier | http://alumni.media.mit.edu/~aggelos/papers/twc2007.pdf | - |
| Language | en | - |
| Title | Cooperative communications with outage-optimal opportunistic relaying | en |
| Creator | Bletsas Aggelos | en |
| Creator | Μπλετσας Αγγελος | el |
| Creator | Win, M.Z. | en |
| Creator | Hyundong Shin | en |
| Publisher | Institute of Electrical and Electronics Engineers | en |
| Content Summary | In this paper, we present simple opportunistic relaying with decode-and-forward (DaF) and amplify-and-forward (AaF) strategies under an aggregate power constraint. In particular, we consider distributed relay-selection algorithms requiring only local channel knowledge. We show that opportunistic DaF relaying is outage-optimal, that is, it is equivalent in outage behavior to the optimal DaF strategy that employs all potential relays. We further show that opportunistic AaF relaying is outage-optimal among single-relay selection methods and significantly outperforms an AaF strategy based on equal-power multiple-relay transmissions with local channel knowledge. These findings reveal that cooperation offers diversity benefits even when cooperative relays choose not to transmit but rather choose to cooperatively listen; they act as passive relays and give priority to the transmission of a single opportunistic relay. Numerical and simulation results are presented to verify our analysis. | en |
| Type of Item | Peer-Reviewed Journal Publication | en |
| Type of Item | Δημοσίευση σε Περιοδικό με Κριτές | el |
| License | http://creativecommons.org/licenses/by/4.0/ | en |
| Date of Item | 2015-10-26 | - |
| Date of Publication | 2007 | - |
| Bibliographic Citation | A. Bletsas, H. Shin, M.Z. Win, "Cooperative Communications with Outage-Optimal Opportunistic Relaying", IEEE Transactions on Wireless Communications (TWC), vol. 6, no. 9, pp. 3450-3460, Sept. 2007. DOI: 10.1109/TWC.2007.06020050 | en |
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