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Distributed quasi-orthogonal space-time coding for two-way wireless relay networks

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conference contribution
posted on 2011-01-13, 17:03 authored by F.M. Abdurahman, A.M. Elazreg, Jonathon Chambers
Abstract—The contribution in this paper is to consider distributed quasi orthogonal space-time block coding (D-QO-STBC) for two-way (TW) wireless relay networks. In particular we exploit a two time slot protocol and both open-loop and closedloop D-QO-STBC with full cooperative diversity. In the openloop approach constellation rotation is exploited to improve performance, whereas two feedback terms are used in the closedloop schemes. Our end-to-end bit error rate simulations show that TW closed-loop D-QO-STBC and rotated open-loop D-QO-STBC are approximately 8 dB and 7.5 dB better than the distributed Alamouti TW approach at 10−4 bit error rate (BER), which confirms the advantage of four relay schemes in relay networks



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ABDURAHMAN, F.M., ELAREG, A.M. and CHAMBERS, J.A., 2010. Distributed quasi-orthogonal space-time coding for two-way wireless relay networks. IN: 7th International Symposium on Wireless Communication Systems (ISWCS), York, 19-22 September, 5pp.




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