Joint Relay Selection and Power Control that aims to Maximize Sum-Rate in Multi-Hop Networks
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2022
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| _version_ | 1866909072377249792 |
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| author | Dayarathna, Shalanika Senanayake, Rajitha Evans, Jamie |
| author_facet | Dayarathna, Shalanika Senanayake, Rajitha Evans, Jamie |
| contents | Focusing on the joint relay selection and power control problem with a view to maximizing the sum-rate, we propose a novel sub-optimal algorithm that iterates between relay selection and power control. The relay selection is performed by maximizing the minimum signal-to-interference-plus-noise-ratio (as opposed to maximizing the sum-rate) and the power control is performed using a successive convex approximation. By comparing the proposed algorithm with existing solutions via extensive simulations, we show that the proposed algorithm results in significant sum-rate gains. Finally, we analyze the two-user multi-hop network and show that optimum transmit power of at least for two transmitting nodes can be found using binary power allocation. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2205_09378 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Joint Relay Selection and Power Control that aims to Maximize Sum-Rate in Multi-Hop Networks Dayarathna, Shalanika Senanayake, Rajitha Evans, Jamie Information Theory Signal Processing Focusing on the joint relay selection and power control problem with a view to maximizing the sum-rate, we propose a novel sub-optimal algorithm that iterates between relay selection and power control. The relay selection is performed by maximizing the minimum signal-to-interference-plus-noise-ratio (as opposed to maximizing the sum-rate) and the power control is performed using a successive convex approximation. By comparing the proposed algorithm with existing solutions via extensive simulations, we show that the proposed algorithm results in significant sum-rate gains. Finally, we analyze the two-user multi-hop network and show that optimum transmit power of at least for two transmitting nodes can be found using binary power allocation. |
| title | Joint Relay Selection and Power Control that aims to Maximize Sum-Rate in Multi-Hop Networks |
| topic | Information Theory Signal Processing |
| url | https://arxiv.org/abs/2205.09378 |