The performance of space-time coded cooperative diversity in an asynchronous cellular uplink

Authors:
Kanchan G. Vardhe;Daryl Reynolds
Affiliations:
Lane Dept. of Comp. Sci. and Elect. Eng., West Virginia University, Morgantown, WV;Lane Dept. of Comp. Sci. and Elect. Eng., West Virginia University, Morgantown, WV
Venue:
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Year:
2006

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Abstract

Most of the prior work on cooperative diversity assumes allocation of orthogonal channels to multiple users (inter-user orthogonality) and synchronous communication between the signals transmitted from different cooperating terminals in the network. Both of these assumptions may require an accurate coordination among the cooperating users causing significant overhead in wireless networks. The main purpose of this paper is to investigate the impact of inter-user non-orthogonality and asynchronous communication on the information-outage probability performance of multi-user space-time coded cooperative diversity in a cellular uplink. We also present a practical system design and we provide bit-error-probability simulations under the practical adaptive receiver design.