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    题名: Different Object Functions for SWIPT Optimization by SADDE and APSO
    作者: Wei Chien;Chien-Ching Chiu;Po-Hsiang Chen;Yu-Ting Cheng;Eng-Hock Lim;Yue-Li Liang;Jia-Rui Wang
    关键词: simultaneous wireless information and power transfer (SWIPT);bit error rate (BER);evolution algorithms;harvesting power (HP);ray-tracing
    日期: 2021-07-24
    上传时间: 2022-03-04 12:14:45 (UTC+8)
    摘要: Multiple objective function with beamforming techniques by algorithms have been studied for the Simultaneous Wireless Information and Power Transfer (SWIPT) technology at millimeter wave. Using the feed length to adjust the phase for different objects of SWIPT with Bit Error Rate (BER) and Harvesting Power (HP) are investigated in the broadband communication. Symmetrical antenna array is useful for omni bearing beamforming adjustment with multiple receivers. Self-Adaptive Dynamic Differential Evolution (SADDE) and Asynchronous Particle Swarm Optimization (APSO) are used to optimize the feed length of the antenna array. Two different object functions are proposed in the paper. The first one is the weighting factor multiplying the constraint BER and HP plus HP. The second one is the constraint BER multiplying HP. Simulations show that the first object function is capable of optimizing the total harvesting power under the BER constraint and APSO can quickly converges quicker than SADDE. However, the weighting for the final object function requires a pretest in advance, whereas the second object function does not need to set the weighting case by case and the searching is more efficient than the first one. From the numerical results, the proposed criterion can achieve the SWIPT requirement. Thus, we can use the novel proposed criterion (the second criterion) to optimize the SWIPT problem without testing the weighting case by case.
    關聯: Symmetry 13(8), 1340
    DOI: 10.3390/sym13081340
    显示于类别:[電機工程學系暨研究所] 期刊論文


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