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Joint Transmit Beamforming and Receive Power Splitting for MISO SWIPT Systems

Shi, Qingjiang ; Liu, Liang ; Xu, Weiqiang ; Zhang, Rui

IEEE transactions on wireless communications, 2014-06, Vol.13 (6), p.3269-3280 [Periódico revisado por pares]

New York, NY: IEEE

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Título:
Joint Transmit Beamforming and Receive Power Splitting for MISO SWIPT Systems
Autor: Shi, Qingjiang ; Liu, Liang ; Xu, Weiqiang ; Zhang, Rui
Assuntos: Algorithms ; Antennas ; Applied sciences ; Array signal processing ; Beamforming ; broadcast channel ; Coding, codes ; Decoding ; Detection, estimation, filtering, equalization, prediction ; energy harvesting ; Exact sciences and technology ; Heuristic ; Information, signal and communications theory ; Interference ; Joints ; Mathematical analysis ; Optimization ; power splitting ; Radio equipment ; Radiocommunications ; Receivers ; semidefinite relaxation ; Signal and communications theory ; Signal to noise ratio ; Signal, noise ; Simultaneous wireless information and power transfer (SWIPT) ; Splitting ; Stations ; Systems, networks and services of telecommunications ; Telecommunications ; Telecommunications and information theory ; Transmission and modulation (techniques and equipments) ; Vectors ; Vectors (mathematics) ; Wireless communication
É parte de: IEEE transactions on wireless communications, 2014-06, Vol.13 (6), p.3269-3280
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: This paper studies a multi-user multiple-input single-output (MISO) downlink system for simultaneous wireless information and power transfer (SWIPT), in which a set of single-antenna mobile stations (MSs) receive information and energy simultaneously via power splitting (PS) from the signal sent by a multi-antenna base station (BS). We aim to minimize the total transmission power at BS by jointly designing transmit beamforming vectors and receive PS ratios for all MSs under their given signal-to-interference-plus-noise ratio (SINR) constraints for information decoding and harvested power constraints for energy harvesting. First, we derive the sufficient and necessary condition for the feasibility of our formulated problem. Next, we solve this non-convex problem by applying the technique of semidefinite relaxation (SDR). We prove that SDR is indeed tight for our problem and thus achieves its global optimum. Finally, we propose two suboptimal solutions of lower complexity than the optimal solution based on the principle of separating the optimization of transmit beamforming and receive PS, where the zero-forcing (ZF) and the SINR-optimal based transmit beamforming schemes are applied, respectively.
Editor: New York, NY: IEEE
Idioma: Inglês

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Joint Transmit Beamforming and Receive Power Splitting for MISO SWIPT Systems

Shi, Qingjiang ; Liu, Liang ; Xu, Weiqiang ; Zhang, Rui

New York, NY: IEEE

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