Beamforming Design for Full-Duplex SWIPT with Co-Channel Interference in Wireless Sensor Systems.

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2018-10-08 DOI:10.3390/s18103362

Xiaoqing Liu, Yinglin Jia, Zhigang Wen, Junwei Zou, Shan Li

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引用次数: 8

Abstract

The simultaneous wireless information and power transfer (SWIPT) technique has been regarded as an appealing approach to prolong the lifetime of wireless sensor networks. However, co-channel interferences with SWIPT in wireless networks have not been investigated from a green communication perspective. In this paper, joint transmit and receive beamforming design for a full-duplex multiple-input multiple-output amplify-and-forward relay system with simultaneous wireless information and power transfer in WSNs is investigated. Multiple co-channel interferers are considered at the relay and destination sensor nodes. To minimize the mean-squared-error of the system, joint source and relay beamforming optimization is proposed while guaranteeing the transmit power constraints and destination's energy harvesting constraint. An iterative algorithm based on alternating optimization with successive convex approximation which converges to a local optimum is proposed to solve the non-convex problem. Moreover, a low-complexity scheme is derived to reduce the computational complexity. Simulations for MSE versus iterations and MSE versus signal-to-noise ratio (SNR) demonstrate the convergence and good performance of the proposed schemes.

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无线传感器系统中具有同信道干扰的全双工SWIPT波束形成设计。

无线信息与功率同步传输(SWIPT)技术被认为是延长无线传感器网络寿命的一种有吸引力的方法。然而，无线网络中SWIPT的同信道干扰尚未从绿色通信的角度进行研究。本文研究了无线传感器网络中具有同步无线信息传输和功率传输的全双工多输入多输出放大转发系统的联合发射和接收波束形成设计。在中继和目标传感器节点上考虑了多个同信道干扰。为了使系统的均方误差最小，在保证发射功率约束和目标能量收集约束的前提下，提出了源中继联合波束形成优化方案。提出了一种基于交替优化和逐次凸逼近的迭代算法，该算法收敛于局部最优。此外，还推导了一种低复杂度方案，以降低计算复杂度。对MSE对迭代和MSE对信噪比(SNR)的仿真表明了所提方案的收敛性和良好的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico