Abstract
To optimize the full-duplex relay cooperation system throughput, a cooperative full-duplex relay selection strategy based on power splitting is proposed. This strategy introduces self-energy recycling technology to eliminate self-interference problem in system, which makes the self-interference signal become beneficial to the system. The strategy also solves the relay selection problem under the optimal system throughput by optimizing the parameters such as relay transmission power and power allocation factor. It transforms the original nonlinear mixed integer programming problem into two coupled optimization problems by using mathematical transformation, and then obtains the optimal solution by KKT condition and Lagrange function. Simulated experiments and analysis results show that the proposed strategy can retrieve the performance loss caused by self-interference and the spectrum efficiency loss caused by half duplex relay. Compared with the full duplex random selection strategy, it can select the best channel and achieve system gain.
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These works are supported by the NNSF of China (No. 61762010).
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Li, T., Shi, A., Chen, J., Ge, Z. (2021). Cooperative Full-Duplex Relay Selection Strategy Based on Power Splitting. In: Sun, Y., Liu, D., Liao, H., Fan, H., Gao, L. (eds) Computer Supported Cooperative Work and Social Computing. ChineseCSCW 2020. Communications in Computer and Information Science, vol 1330. Springer, Singapore. https://doi.org/10.1007/978-981-16-2540-4_28
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DOI: https://doi.org/10.1007/978-981-16-2540-4_28
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