Joint subcarrier pairing and resource allocation for adaptive hybrid relay protocol in OFDM systems

Sileh, Ibrahim Khalil and Xiang, Wei and Maxwell, Andrew (2013) Joint subcarrier pairing and resource allocation for adaptive hybrid relay protocol in OFDM systems. In: 24th IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC 2013), 8-11 Sep 2013 , London, United Kingdom.

Abstract

Orthogonal frequency division multiplexing (OFDM) has been adopted as a promising technique to mitigate multi-path fading and provides high spectral efficiency in broadband communications. In this paper, we investigate resource allocation and sub-carrier permutation in OFDM-based hybrid relay protocol over frequency-selective channels. Selective multicarrier-adaptive hybrid relay protocol (MC-AHRP), involves the sub-carrier utilizing an amplify-and-forward (AF) scheme when the instantaneous signal-to-noise ratio (SNR) is larger than threshold value and an adaptive decode-and-forward (ADF) scheme when the instantaneous SNR is less than threshold value. The proposed protocol exploits the benefits of adaptive hybrid relay protocol, OFDM, resource allocation, and sub-carrier permutation to provide a substantial enhancement in the system performance. The simulation results show that when the protocol performs resource allocation (RA) and sub-carrier permutation (SP) can provide an excellent improvement in the capacity of the system. It also demonstrate that the proposed protocol can achieve a significant improvement in throughput compared with conventional protocols.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2013 IEEE. Published version restricted in accordance with the copyright policy of the publisher.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 08 Feb 2014 01:56
Last Modified: 16 Sep 2014 01:37
Uncontrolled Keywords: MC-AHRP; OFDM; resource allocation; subcarrier permutation
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing
10 Technology > 1005 Communications Technologies > 100502 Broadband and Modem Technology
Socio-Economic Objective: B Economic Development > 89 Information and Communication Services > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified
Identification Number or DOI: 10.1109/PIMRC.2013.6666474
URI: http://eprints.usq.edu.au/id/eprint/24746

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