Joint Optimization of Transmission and Antenna Subarray Formation Receiving for MIMO SWIPT Systems

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• 作者：Xudong Yin ; Xinpeng Zeng ; Quanzhong Li ; Qi Zhang…
• 关键词：Antenna subarray formation (ASF) ; Energy harvesting (EH) ; Multiple ; input ; multiple ; output (MIMO) ; Rate ; energy region ; Simultaneous wireless information and power transfer (SWIPT)
• 刊名：Wireless Personal Communications
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：87
• 期：1
• 页码：215-224
• 全文大小：619 KB
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• 作者单位：Xudong Yin (1)
  Xinpeng Zeng (1)
  Quanzhong Li (1)
  Qi Zhang (1)
  Jiayin Qin (1)
  
  1. School of Information Science and Technology, Sun Yat-Sen University, Guangzhou, 510006, Guangdong, China
  
• 刊物类别：Engineering
• 刊物主题：Electronic and Computer Engineering
  Signal,Image and Speech Processing
  Processor Architectures
  
• 出版者：Springer Netherlands
• ISSN：1572-834X

文摘

To reduce hardware complexity of multiple-input multiple-output system with the simultaneous wireless information and power transfer scheme, we propose joint transmission and antenna subarray formation (ASF) receiving optimization scheme which maximizes the achievable rate under the transmit power constraint and the energy harvesting constraint. By relaxing the constraint that ASF matrix should contain limited number of nonzero elements, we employ alternating optimization method to alternatively optimize the transmit covariance matrix and the ASF matrix. We also propose the capacity-loss-based and maximum absolute values algorithms to recover the above constraint on the ASF matrix. It is shown from the simulation results that the proposed schemes outperform the conventional antenna selection scheme. Keywords Antenna subarray formation (ASF) Energy harvesting (EH) Multiple-input-multiple-output (MIMO) Rate-energy region Simultaneous wireless information and power transfer (SWIPT)