Robust designs of beamforming and power splitting for distributed antenna systems with wireless energy harvesting

Zhengyu Zhu, Sai Huang, Zheng Chu, Fuhui Zhou, Di Zhang, Inkyu Lee*

*この研究の対応する著者

研究成果: Article査読

39 被引用数 (Scopus)

抄録

In this paper, we investigate a multiuser distributed antenna system with simultaneous wireless information and power transmission under the assumption of imperfect channel state information (CSI). In this system, a distributed antenna port with multiple antennas supports a set of mobile stations that can decode information and harvest energy simultaneously via a power splitter. To design robust transmit beamforming vectors and the power splitting factors in the presence of CSI errors, we maximize the average worst-case signal-to-interference-plus-noise ratio (SINR) while achieving an individual energy harvesting constraint for each mobile station. First, we develop an efficient algorithm to convert the max-min SINR problem to a set of “dual” min-max power balancing problems. Then, motivated by the penalty function method, an iterative algorithm based on semidefinite programming is proposed to achieve a local optimal rank-one solution. Also, to reduce the computational complexity, we present another iterative scheme based on the Lagrangian method and the successive convex approximation technique to yield a suboptimal solution. Simulation results are shown to validate the robustness and effectiveness of the proposed algorithms.

本文言語English
論文番号8283591
ページ(範囲)30-41
ページ数12
ジャーナルIEEE Systems Journal
13
1
DOI
出版ステータスPublished - 2019 3

ASJC Scopus subject areas

  • 制御およびシステム工学
  • 情報システム
  • コンピュータ サイエンスの応用
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

フィンガープリント

「Robust designs of beamforming and power splitting for distributed antenna systems with wireless energy harvesting」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル