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Throughput Optimization of Active STAR-RIS Assisted Wireless Powered Communication Network
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Wenwu XIE1, Zengjia YUAN1, Guilin LI1, Yiming LI1, *, Jie HUANG2, Zhenwei ZHOU1
Radio Communications Technology | 2025, 51(5) : 891 - 898
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Radio Communications Technology | 2025, 51(5): 891-898
Special Topic: 6G and IoT Technologies
Throughput Optimization of Active STAR-RIS Assisted Wireless Powered Communication Network
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Wenwu XIE1, Zengjia YUAN1, Guilin LI1, Yiming LI1, *, Jie HUANG2, Zhenwei ZHOU1
Affiliations
  • 1.School of Information Science and Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
  • 2.Hunan 6906 Information Technology Co. , Ltd. , Yueyang 414006, China
Published: 2025-09-18 doi: 10.3969/j.issn.1003-3114.2025.05.002
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In this paper, a Wireless Powered Communication Network (WPCN) based on Active Simultaneously Transmitting and Reflecting Reconfigurable Intelligent Surface (ASTAR-RIS) is proposed. The communication network is mainly composed of four parts: Power Station (PS), Sensor Node Groups (SNGs), ASTAR-RIS and Access Point (AP). The operation process of the communication system is mainly divided into two stages: Wireless Energy Transfer (WET) stage and Wireless Information Transfer (WIT) stage. Energy Splitting (ES) mode is adopted in the wireless energy transmission phase, and Time Switching (TS) mode is adopted in the wireless information transmission phase. This paper aims to optimize the phase shift parameters and communication resource allocation of ASTAR-RIS to maximize system throughput. Since the optimization problem is non-convex, this paper uses an alternate optimization algorithm to solve the problem. Firstly, the problem is divided into two parts according to the coupled variables. The optimal solutions of the variables in these two parts are solved by Semidefinite Relaxation (SDR) and Fractional Programming (FP) respectively. Experimental results show that the communication scheme proposed in this paper can provide higher performance gain for the system.

WPCN  /  ASTAR-RIS  /  convex optimization
Wenwu XIE, Zengjia YUAN, Guilin LI, Yiming LI, Jie HUANG, Zhenwei ZHOU. Throughput Optimization of Active STAR-RIS Assisted Wireless Powered Communication Network[J]. Radio Communications Technology, 2025 , 51 (5) : 891 -898 . DOI: 10.3969/j.issn.1003-3114.2025.05.002
Year 2025 volume 51 Issue 5
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doi: 10.3969/j.issn.1003-3114.2025.05.002
  • Receive Date:2025-04-22
  • Online Date:2026-04-17
  • Published:2025-09-18
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  • Received:2025-04-22
Affiliations
    1.School of Information Science and Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
    2.Hunan 6906 Information Technology Co. , Ltd. , Yueyang 414006, China
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表12种不同金属材料的力学参数

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Number of
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Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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