Power allocation of distributed space-frequency coding for OFDM-based hybrid relay selection
Paper
Paper/Presentation Title | Power allocation of distributed space-frequency coding for OFDM-based hybrid relay selection |
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Presentation Type | Paper |
Authors | Sileh, Ibrahim Khalil (Author), Xiang, Wei (Author) and Maxwell, Andrew (Author) |
Editors | Wysocki, Tad |
Journal or Proceedings Title | Proceedings of the 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013) |
ERA Conference ID | 50821 |
Number of Pages | 7 |
Year | 2013 |
Place of Publication | United States |
ISBN | 9781479913190 |
Digital Object Identifier (DOI) | https://doi.org/10.1109/ICSPCS.2013.6723943 |
Web Address (URL) of Paper | http://www.dspcs-witsp.com/icspcs_2013/index.html |
Conference/Event | 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013) |
International Conference on Signal Processing and Communication Systems | |
Event Details | 7th International Conference on Signal Processing and Communication Systems (ICSPCS 2013) Event Date 16 to end of 18 Dec 2013 Event Location Gold Coast, Australia |
Event Details | International Conference on Signal Processing and Communication Systems ICSPCS |
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. |
Keywords | Alamouti code; DSFC; hybrid relay protocol; OFDM; power allocation |
ANZSRC Field of Research 2020 | 400607. Signal processing |
400699. Communications engineering not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Tikrit University, Iraq |
School of Mechanical and Electrical Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2127/power-allocation-of-distributed-space-frequency-coding-for-ofdm-based-hybrid-relay-selection
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