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Distributed Closed-Loop Quasi-Orthogonal Space Time Block Coding with four relay Nodes: overcoming Imperfect Synchronization

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3 Author(s)
Elazreg, A.M. ; Electron. & Electr. Eng. Dept., Loughborough Univ., Loughborough, UK ; Abdurahman, F.M. ; Chambers, J.A.

In this paper, closed-loop quasi-orthogonal space time block coding(QO-STBC) is exploited within a four relay node transmission scheme to achieve full-rate and increase the available diversity gain provided by earlier two relay approaches. The problem of imperfect synchronization between relay nodes is overcome by applying a parallel interference cancellation (PIC) detection scheme at the destination node. Bit error rate simulations confirm the advantages of the proposed methodology for a range of levels of imperfect synchronization and that only a small number of iterations is necessary within the PIC detection.

Published in:

Wireless and Mobile Computing, Networking and Communications, 2009. WIMOB 2009. IEEE International Conference on

Date of Conference:

12-14 Oct. 2009