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Distributed closed-loop extended orthogonal STBC: Improved performance in imperfect synchronization


El Astal, M-TO and Olivier, JC, Distributed closed-loop extended orthogonal STBC: Improved performance in imperfect synchronization, Proceedings of the IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications, 8-11 September 2013, London, United Kingdom, pp. 1941-1945. ISSN 2166-9570 (2013) [Refereed Conference Paper]

Copyright Statement

Copyright 2013 IEEE

DOI: doi:10.1109/PIMRC.2013.6666461


Substantial performance gain and a full coding rate can be achieved by utilizing a Closed-Loop Extended- Orthogonal Space-Time Block Coding (CL-EO-STBC) scheme in wireless relaying networks, referred to as D-CL-EO-STBC. So far, most research has focused on the perfect synchronization case and for only two-nodes wireless relaying networks. Unfortunately, perfect synchronization is difficult (or impossible) to achieve in wireless relaying networks, as a timing misalignment between the received versions of the transmitted signals from the relaying nodes will occur. In this paper, an improved detection scheme, based on a PIC detector which was previously introduced, is proposed to mitigate the performance degradation due to imperfect synchronization in four-nodes wireless relaying networks employing CL-EO-STBC. Numerical simulations show that the proposed detection scheme can achieve performance close to that of perfect synchronization even under severe imperfect synchronization conditions in just two iterations while maintaining a low-level of computational complexity.

Item Details

Item Type:Refereed Conference Paper
Keywords:mobile networks, wireless relaying networks, CL-EO-STBC, decode and forward relaying protocol, parallel Interference cancellation, successive interference cancellation and imperfect synchronization
Research Division:Engineering
Research Group:Communications engineering
Research Field:Signal processing
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:El Astal, M-TO (Mr Mohammed El Astal)
UTAS Author:Olivier, JC (Professor JC Olivier)
ID Code:87579
Year Published:2013
Deposited By:Engineering
Deposited On:2013-11-25
Last Modified:2017-11-06
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