无线信息与能量同时传输的鲁棒协作中继波束形成优化设计

赵璐璐; 姜兴龙; 李理敏; 曾国强; 刘会杰

doi:10.1631/FITEE.1601268

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无线信息与能量同时传输的鲁棒协作中继波束形成优化设计

常规文章 | Updated：2022-05-19

- 无线信息与能量同时传输的鲁棒协作中继波束形成优化设计
- Optimization of a robust collaborative-relay beamforming design for simultaneous wireless information and power transfer
- 信息与电子工程前沿（英文） 2018年19卷第11期页码：1432-1443
- Affiliations：
  
  Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, China
  Shanghai Engineering Center for Microsatellites, Shanghai 201210, China
  College of Mathematics, Physics and Electronic Information Engineering, Wenzhou University, Wenzhou 325035, China
- Author bio：
  
  Li-min LI, E-mail: lilimin@wzu.edu.cn
- Funds：
  
  Project supported by the National Natural Science Foundation of China (No. 61601295) and the Zhejiang Provincial Natural Science Foundation of China (No. LY18F030015)
- DOI：10.1631/FITEE.1601268
  中图分类号： TN92
- 收稿：2016-05-19，
  
  修回：2018-11-27，
  
  纸质出版：2018-11
- Accepted：
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赵璐璐, 姜兴龙, 李理敏, 等. 无线信息与能量同时传输的鲁棒协作中继波束形成优化设计[J]. 信息与电子工程前沿（英文）, 2018,19(11):1432-1443.

Lu-lu ZHAO, Xing-long JIANG, Li-min LI, et al. Optimization of a robust collaborative-relay beamforming design for simultaneous wireless information and power transfer[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(11): 1432-1443.
赵璐璐, 姜兴龙, 李理敏, 等. 无线信息与能量同时传输的鲁棒协作中继波束形成优化设计[J]. 信息与电子工程前沿（英文）, 2018,19(11):1432-1443. DOI： 10.1631/FITEE.1601268.

Lu-lu ZHAO, Xing-long JIANG, Li-min LI, et al. Optimization of a robust collaborative-relay beamforming design for simultaneous wireless information and power transfer[J]. Frontiers of Information Technology & Electronic Engineering, 2018, 19(11): 1432-1443. DOI： 10.1631/FITEE.1601268.

摘要

研究了应用于无线信息与能量同时传输的协作中继波束形成设计。基于中继节点拥有理想信道状态信息的假设，提出一种非鲁棒波束形成设计。实际中信道状态信息误差通常不可避免，为此，提出一种鲁棒波束形成设计。采用二分法和半定松弛法解决非鲁棒和鲁棒波束形成设计的非凸优化问题。由于半定松弛法的解不总是秩一的，提出一种迭代次梯度法求秩一解。仿真结果表明，在非理想信道状态信息下，所提鲁棒波束形成设计性能优于非鲁棒设计。

Abstract

We investigate a collaborative-relay beamforming design for simultaneous wireless information and power transfer. A non-robust beamforming design that assumes availability of perfect channel state information (CSI) in the relay nodes is addressed. In practical scenarios

CSI errors are usually inevitable; therefore

a robust collaborativerelay beamforming design is proposed. By applying the bisection method and the semidefinite relaxation (SDR) technique

the non-convex optimization problems of both non-robust and robust beamforming designs can be solved. Moreover

the solution returned by the SDR technique may not always be rank-one; thus

an iterative sub-gradient method is presented to acquire the rank-one solution. Simulation results show that under an imperfect CSI case

the proposed robust beamforming design can obtain a better performance than the non-robust one.

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