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Symbol-Level Selective Full-Duplex Relaying with Power and Location Optimization

Hou, J, Narayanan, S, Yi, Na, Ma, Yi and Shikh-Bahaei, M (2018) Symbol-Level Selective Full-Duplex Relaying with Power and Location Optimization IEEE Transactions on Communications.

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Abstract

In this paper, a symbol-level selective transmission for full-duplex (FD) relaying networks is proposed to mitigate error propagation effects and improve system spectral efficiency. The idea is to allow the FD relay node to predict the correctly decoded symbols of each frame, based on the generalized square deviation method, and discard the erroneously decoded symbols, resulting in fewer errors being forwarded to the destination node. Using the capability for simultaneous transmission and reception at the FD relay node, our proposed strategy can improve the transmission efficiency without extra cost of signalling overhead. In addition, targeting on the derived expression for outage probability, we compare it with half-duplex (HD) relaying case, and provide the transmission power and relay location optimization strategy to further enhance system performances. The results show that our proposed scheme outperforms the classic relaying protocols, such as cyclic redundancy check based selective decode-and-forward (S-DF) relaying and threshold based SDF relaying in terms of outage probability and bit-error-rate. Moreover, the performances with optimal power allocation are better than those with equal power allocation, especially when the FD relay node encounters strong self-interference and/or it is close to the destination node.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Hou, J
Narayanan, S
Yi, NaN.Yi@surrey.ac.uk
Ma, YiY.Ma@surrey.ac.uk
Shikh-Bahaei, M
Date : 7 June 2018
Funders : EPSRC
DOI : 10.1109/TCOMM.2018.2844820
Copyright Disclaimer : © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
Uncontrolled Keywords : Symbol-level selection, full-duplex relaying, decode-and-forward, outage probability, power and location optimization.
Depositing User : Melanie Hughes
Date Deposited : 05 Jun 2018 13:48
Last Modified : 11 Dec 2018 11:24
URI: http://epubs.surrey.ac.uk/id/eprint/846996

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