Simultaneous information and power transfer in MISO interference systems

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper considers simultaneous wireless information and power transfer (SWIPT) in multiple-input single-output (MISO) interference systems in presence of energy harvesting nodes. We investigate the interference temperature minimization problem while satisfying signal-to-interference-and-noise ratio (SINR) and energy harvesting thresholds at the information and energy receivers, respectively. The objective is to improve the received SINR as well as to reduce cross-link information leakage in order to improve physical-layer security. The formulation leads to a non-convex problem which we solve using semidefinite relaxation (SDR) technique. A rank-constrained optimization algorithm is proposed and a rank reduction procedure is developed in order to achieve a lower rank solution. Interestingly, we show that the SDR is in fact tight and an optimal rank-one solution can be developed in certain scenarios. Numerical simulations are performed to demonstrate the effectiveness of the proposed algorithm.

Original languageEnglish
Title of host publication2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP)
PublisherIEEE
Pages596-600
Number of pages5
ISBN (Electronic)9781479919482
DOIs
Publication statusPublished - 3 Sep 2015
Event2015 IEEE China Summit and International Conference on Signal and Information Processing - Chengdu, China
Duration: 12 Jul 201515 Jul 2015

Conference

Conference2015 IEEE China Summit and International Conference on Signal and Information Processing
Abbreviated titleChinaSIP 2015
CountryChina
CityChengdu
Period12/07/1515/07/15

ASJC Scopus subject areas

  • Information Systems
  • Signal Processing

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  • Cite this

    Khandaker, M. R. A., & Wong, K-K. (2015). Simultaneous information and power transfer in MISO interference systems. In 2015 IEEE China Summit and International Conference on Signal and Information Processing (ChinaSIP) (pp. 596-600). IEEE. https://doi.org/10.1109/ChinaSIP.2015.7230473