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Full-rate and full-diversity extended orthogonal space-time block coding in cooperative relay networks with imperfect synchronization

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conference contribution
posted on 09.12.2010 by Faisal T. Alotaibi, Jonathon Chambers
In this paper we present a novel extended orthogonal space-time block coding (EO-STBC) scheme for three and four relay nodes to use in asynchronous cooperative relay networks. This approach attains full-rate and full-diversity in that each hop attains unity rate and all four uncorrelated paths are utilized. Robustness against the effects of random delays at the relay nodes is enhanced through the use of a low-rate feedback channel. A new low complexity phase feedback scheme has been proposed which can retain the advantage of the perfect feedback scheme with substantial reduction in the feedback overhead. Orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP) is used at the source node to combat the timing errors at the relay nodes, which operate in a simple amplify-and-forward (AF) mode. Simulations show that our new scheme outperforms the previous schemes and uses a very simple symbol-wise maximum-likelihood (ML) decoder.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Citation

ALOTAIBI, F.T. and CHAMBERS, J., 2010. Full-rate and full-diversity extended orthogonal space-time block coding in cooperative relay networks with imperfect synchronization. IN: IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP), Dallas, TX, 14-19 March, pp. 2882 - 2885

Publisher

© IEEE

Version

VoR (Version of Record)

Publication date

2010

Notes

This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

ISBN

9781424442959

Language

en

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