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Erschienen in: Wireless Personal Communications 4/2015

01.10.2015

Energy Efficient Relay Positioning and Power Allocation for Multi-Relay Symmetric Channel with Analog Network Coding

verfasst von: Jian Zhou, Canyan Zhu, Donglin Wang, Aiming Ji

Erschienen in: Wireless Personal Communications | Ausgabe 4/2015

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Abstract

In this paper, we focus on studying the optimal joint relay positioning and power allocation for two serial relays’ transmission. We consider that information exchanges in Rayleigh flat-fading channels between two end-users which have symmetric traffic requirements in terms of the data rate. Multiple serial half-duplex relay nodes are employed to extend the communication coverage and assist the bidirectional communication between two end-users using the analog network coding protocol. With the objective of minimizing the total transmitting energy at the required data rate c, we investigate the optimal relay positioning and power allocation and then propose sub-optimal solutions for a two-serial-relay one-way channel and a two-serial-relay two-way channel due to no close-form optimal solution. Simulation results demonstrate a consistency with our proposed schemes.

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Metadaten
Titel
Energy Efficient Relay Positioning and Power Allocation for Multi-Relay Symmetric Channel with Analog Network Coding
verfasst von
Jian Zhou
Canyan Zhu
Donglin Wang
Aiming Ji
Publikationsdatum
01.10.2015
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 4/2015
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-015-2764-9

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