Sileh, Ibrahim Khalil and Xiang, Wei and Maxwell, Andrew (2013) Power allocation of distributed space-frequency coding for OFDM-based hybrid relay selection. In: 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013), 16-18 Dec 2013, Gold Coast, Australia.
Abstract
Cooperative communications in conjunction with orthogonal frequency division multiplexing (OFDM) has recently emerged as a promising technique to mitigate multi-path fading and provides high spectral efficiency in broadband wireless communications systems. In this paper, we investigate resource allocation of an OFDM modulation scheme combined with distributed space-frequency codes (DSFC) based upon a hybrid relay selection protocol. The optimum problem is divided into two suboptimal problems. The first one is to optimize the power allocation between the source and relay nodes under a sum power constraint. Then the relay power is optimized for the selected relay nodes according to the channel power gain of the second time slot. Simulation results show that a substantial improvement in terms of bit error rate (BER) and capacity performance can be achieved in comparison with conventional relaying 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. 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. |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021) |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 Jul 2013 - 31 Dec 2021) |
| Date Deposited: | 23 Mar 2014 02:35 |
| Last Modified: | 07 Apr 2015 23:57 |
| Uncontrolled Keywords: | Alamouti code; DSFC; hybrid relay protocol; OFDM; power allocation |
| Fields of Research (2008): | 09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing 10 Technology > 1005 Communications Technologies > 100502 Broadband and Modem Technology |
| Fields of Research (2020): | 40 ENGINEERING > 4006 Communications engineering > 400607 Signal processing 40 ENGINEERING > 4006 Communications engineering > 400699 Communications engineering not elsewhere classified |
| Socio-Economic Objectives (2008): | 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: | https://doi.org/10.1109/ICSPCS.2013.6723943 |
| URI: | http://eprints.usq.edu.au/id/eprint/24062 |
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