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- W2079806412 abstract "In this paper, we adopt a novel efficiency measure, namely, the received signal to noise ratio (SNR) per unit power, in relay network design. First, limitations of conventional efficiency measures, spectral efficiency and energy efficiency, are discussed to motivate the SNR-per-unit-power (SNR-PUP) measure. Then for a single-relay network which uses amplify-and-forward (AF) protocol, we find the optimal relay power that maximizes the SNR-PUP for a given transmitter power. The average relay power, the SNR-PUP, and the outage probability of the proposed design are investigated analytically and numerically, and are compared with the conventional design where the relay power is fixed. We also consider a general multi-relay network and use gradient-ascent method for the SNR-PUP maximization. Our results show that with the same average relay transmit power, the proposed design is superior not only in the SNR-PUP but also in the outage probability for both single and multi-relay networks." @default.
- W2079806412 created "2016-06-24" @default.
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- W2079806412 date "2013-05-01" @default.
- W2079806412 modified "2023-09-23" @default.
- W2079806412 title "SNR-per-unit-power optimization in relay networks" @default.
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- W2079806412 doi "https://doi.org/10.1109/icassp.2013.6638603" @default.
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