Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks
This paper investigates the power control and resource allocation problem in a simultaneously wireless information and power transfer (SWIPT)-based cognitive two-way relay network, in which two secondary users exchange information through a power splitting (PS) energy harvesting (EH) cognitive relay...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/17/7620 |
| _version_ | 1797581845768962048 |
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| author | Chunling Peng Guozhong Wang Huaping Liu |
| author_facet | Chunling Peng Guozhong Wang Huaping Liu |
| author_sort | Chunling Peng |
| collection | DOAJ |
| description | This paper investigates the power control and resource allocation problem in a simultaneously wireless information and power transfer (SWIPT)-based cognitive two-way relay network, in which two secondary users exchange information through a power splitting (PS) energy harvesting (EH) cognitive relay node underlay in a primary network. To enhance the secondary networks’s transmission ability without detriment to the primary network, we formulate an optimization to maximize the minimum transmission rates of the cognitive users by jointly optimizing power allocation at the sources, the time allocation of transmission frames and power splitting at the relay, under the constraint that the transmission power of the cognitive network is set not to exceed the primary user interference threshold to ensure primary work performance. To efficiently solve this problem, a sub-optimal algorithm named the joint power control and resource allocation (JPCRA) scheme is proposed, in which we decouple the non-convex problem into convex problems and use alternative steps in the optimization algorithm to get final solutions. Numerical results reveal that the proposed scheme enhances transmission fairness and outperforms three traditional schemes. |
| first_indexed | 2024-03-10T23:12:20Z |
| format | Article |
| id | doaj.art-64c22d535bc449f3aa52c93c5a9e1c4e |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T23:12:20Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-64c22d535bc449f3aa52c93c5a9e1c4e2023-11-19T08:52:17ZengMDPI AGSensors1424-82202023-09-012317762010.3390/s23177620Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay NetworksChunling Peng0Guozhong Wang1Huaping Liu2School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing 400054, ChinaSchool of Communication Engineering, Chongqing College of Electronic Engineering, Chongqing 401331, ChinaSchool of Electrical and Electronic Engineering, Oregon State University, Corvallis, OR 97331, USAThis paper investigates the power control and resource allocation problem in a simultaneously wireless information and power transfer (SWIPT)-based cognitive two-way relay network, in which two secondary users exchange information through a power splitting (PS) energy harvesting (EH) cognitive relay node underlay in a primary network. To enhance the secondary networks’s transmission ability without detriment to the primary network, we formulate an optimization to maximize the minimum transmission rates of the cognitive users by jointly optimizing power allocation at the sources, the time allocation of transmission frames and power splitting at the relay, under the constraint that the transmission power of the cognitive network is set not to exceed the primary user interference threshold to ensure primary work performance. To efficiently solve this problem, a sub-optimal algorithm named the joint power control and resource allocation (JPCRA) scheme is proposed, in which we decouple the non-convex problem into convex problems and use alternative steps in the optimization algorithm to get final solutions. Numerical results reveal that the proposed scheme enhances transmission fairness and outperforms three traditional schemes.https://www.mdpi.com/1424-8220/23/17/7620SWIPTcognitive two-way relaypower splittingjoint resource allocation |
| spellingShingle | Chunling Peng Guozhong Wang Huaping Liu Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks Sensors SWIPT cognitive two-way relay power splitting joint resource allocation |
| title | Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks |
| title_full | Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks |
| title_fullStr | Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks |
| title_full_unstemmed | Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks |
| title_short | Joint Power Control and Resource Allocation with Rate Fairness Consideration for SWIPT-Based Cognitive Two-Way Relay Networks |
| title_sort | joint power control and resource allocation with rate fairness consideration for swipt based cognitive two way relay networks |
| topic | SWIPT cognitive two-way relay power splitting joint resource allocation |
| url | https://www.mdpi.com/1424-8220/23/17/7620 |
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