In this paper, we investigate transmit power optimization in a network based on asymmetric two-way semi-blind amplify-and-forward (AF) relaying and opportunistic relay selection. After processing the asymptotic outage probabilities based on partial channel state information (CSI) at relays, we provide the optimization of power allocation which aims to minimize the total transmit power under outage probabilities constraints. The proposed results are validated by simulations and compared to well known reference which is asymmetric two-way CSI-assisted AF relaying system.
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This publication was made possible by NPRP Grant 10-0102-170094 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.
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Hadj Alouane, W. Power allocation for asymmetric two-way fixed-gain AF relaying networks. Telecommun Syst 71, 553–559 (2019). https://doi.org/10.1007/s11235-018-0531-4
- Power allocation
- Outage probability