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Mobile Networks and Applications

, Volume 24, Issue 2, pp 630–642 | Cite as

Performance Analysis of MIMO SWIPT Relay Network with Imperfect CSI

  • Tran Manh Hoang
  • Xuan Nam Tran
  • Nguyen Thanh
  • Le The DungEmail author
Article
  • 80 Downloads

Abstract

In this paper, we consider a dual-hop multiple-input multiple-output (MIMO) simultaneous wireless information and power transfer (SWIPT) relay network, where the source node (SN) uses a transmission antenna selection (TAS) scheme to concurrently send information and energy to the single-antenna relay node (RN). This helps to utilize the harvested energy to forward the received signal. In addition, the destination node (DN) employs the maximum ratio combining (MRC) scheme to process this forwarded signal. The performance of this MIMO SWIPT relay system is investigated in imperfect channel state information (CSI) condition. Specifically, we derive the exact and approximate closed-form expressions for the outage probability, the average capacity, and the symbol error probability (SEP). This is the first time the exact and approximate formulas for the SEP of the energy harvesting networks are investigated. The Monte Carlo simulation results are provided to demonstrate the relevance of the developed analytical results, showing that the system’s performance is significantly impacted by the CSI imperfection, the number of antennas, and the energy harvesting duration.

Keywords

MIMO Relay Transmit antenna selection Maximum ratio combining Energy harvesting Imperfect CSI 

Nomenclature

Pr(.)

Probability function

fU(u)

Probability density function (PDF)

FU(u)

Cumulative distribution function (CDF)

Γ(⋅),

Gamma function

\({\Gamma } \left ({ \cdot , \cdot } \right )\)

Incomplete gamma function

\(\mathcal {CN}(\mu ,\sigma ^{2})\)

Circularly symmetric complex normal distribution with mean \(\mu \) and variance \(\sigma ^{2}\)

\(\mathbb {E}\left \{\cdot \right \}\)

Statistical expectation operator

\({\mathcal {K}}_{n}\left (\cdot \right )\)

Modified Bessel function of the second kind of order n

\(E_{n}\left (. \right )\)

Integral exponential function of order n

W,μ(.)

Whittaker function [32]

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Faculty of Radio ElectronicsLe Quy Don Technical UniversityHanoiVietnam
  2. 2.Department of Radio and Communication EngineeringChungbuk National UniversityCheongjuKorea

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