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Adaptive virtual relaying MIMO decode and forward

By T. Kanakis, C. Litchfield and P. Rapajic

Abstract

Multi-antenna wireless communication systems exploit channel diversity otherwise not available in Single Input Single Output (SISO) channels. Implementation of wireless Multiple Input Multiple-Output (MIMO) systems is problematic due to the large sized operational wavelengths over the small dimensionality of the mobile devices. An Adaptive Virtual Relaying MIMO (AV-RMIMO) technique shown in this paper that increases the channel capacity between two single-antenna equipped communication nodes. A Decode-and-Forward (DF) relaying scheme is used. AV-RMIMO-DF, benefits from the increased diversity of the Relaying MIMO channels and is applicable to mobile environments with no fundamental changes to the network topology. MMSE estimation via Adaptive MUD is used for node selection and recruitment to transform multiple single-antenna nodes into a single multi antenna node. It is shown that AV-RMIMO-DF is capable of a theoretical spectral efficiency up to 16.7bits/s/H ¿ at an SNR of 30dB and BER up to 10-5 at an SNR of about 11.5dB

Topics: TA, TK
Publisher: Institute of Electrical and Electronic Engineers, Inc
Year: 2009
OAI identifier: oai:gala.gre.ac.uk:7833
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