Joint channel estimation, training design, Tx power allocation, and Rx power splitting for MIMO SWIPT Systems

Byungjo Kim, Jae Mo Kang, Hyung Myung Kim, Joonhyuk Kang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In this letter, we develop a novel scheme for joint channel estimation, training design, transmit (Tx) power allocation, and receive (Rx) power splitting in multiple-input multiple-output (MIMO) simultaneous wireless information and power transfer (SWIPT) systems, which maximizes the average signal-to-error-plus-noise ratio (SENR) with average harvested energy constraints at the receiver. To solve this challenging design problem, we first convert it into a more tractable form, which enables to derive the optimal solution efficiently. To further lower the required complexity, we also propose a suboptimal solution in a closed form. The performance of the proposed scheme is demonstrated through numerical simulations.

Original languageEnglish
Article number9312624
Pages (from-to)1269-1273
Number of pages5
JournalIEEE Communications Letters
Volume25
Issue number4
DOIs
StatePublished - Apr 2021

Keywords

  • Channel estimation
  • energy harvesting
  • MIMO
  • power allocation
  • power splitting
  • SWIPT
  • training design

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