Research Article | OPEN ACCESS
Hybrid Concatenated Super-orthogonal Space-time Frequency Trellis Coded MIMO-OFDM Systems
Ilesanmi B. Oluwafemi and Stanley H. Mneney
School of Engineering, University of KwaZulu-Natal, Durban, South Africa
Research Journal of Applied Sciences, Engineering and Technology 2014 4:530-540
Received: March ‎29, ‎2014 | Accepted: April ‎28, ‎2014 | Published: July 25, 2014
Abstract
In this study, we propose two hybrids concatenated Super-Orthogonal Space-Time Trellis Codes (SOSTTC) applying iterative decoding in Orthogonal Frequency Division Multiplexing (OFDM) over frequency selective fading channels. The coding scheme is based on the concatenation of convolution coding, interleaving and space-time coding along multiple-transmitter/multiple-receiver diversity systems. The Pair wise Error Probability (PEP) for the two proposed concatenated schemes is derived and their performance is evaluated using computer simulation with Maximum a Posteriori (MAP) iterative decoding algorithm. Simulation results based on the iterative decoding process show a significant improvement in the achieved error rate performance of the concatenated scheme over existing concatenated designs.
Keywords:
Concatenated codes, frequency selective fading channels, iterative decoding, orthogonal frequency division multiplexing , space-time decoding,
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Competing interests
The authors have no competing interests.
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This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
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