Energy Efficient Design for MIMO Two-Way AF Multiple Relay Networks

Abstract

This paper studies the energy efficient transmission and the power allocation problem for multiple two-way relay networks equipped with multi-input multi-output antennas where each relay employs an amplify-and-forward strategy. The goal is to minimize the total power consumption without degrading the quality of service of the terminals. In our analysis, we start by deriving closed-form expressions of the optimal powers allocated to terminals. We then employ a strong optimization tool based on the particle swarm optimization technique to find the optimal power allocated at each relay antenna. Our numerical results illustrate the performance of the proposed scheme and show that it achieves a sub-optimal solution very close to the optimal one.

Meeting Name

2014 IEEE Wireless Communications and Networking Conference, WCNC 2014 (2014: Apr. 6-9, Istanbul, Turkey)

Department(s)

Electrical and Computer Engineering

Keywords and Phrases

amplify-and-forward; particle swarm optimization; Two-way relay networks

International Standard Book Number (ISBN)

978-147993083-8

International Standard Serial Number (ISSN)

1525-3511; 1558-2612

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2014 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Apr 2014

Link to Full Text

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