Cross-layer design for MIMO spatial multiplexing in correlated Ricean fading

Authors:
Hassan A. Abou Saleh;Walaa Hamouda
Affiliations:
Dept. of Electricacl & Computer Engineering, Concordia University, Montréal, Québec, Canada;Dept. of Electricacl & Computer Engineering, Concordia University, Montréal, Québec, Canada
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

In this paper, we investigate a cross-layer transmit antenna selection (T-AS) approach for multiple-input multiple-output spatial multiplexing (MIMO-SM) systems employing decision-feedback detector (DFD), over spatially correlated Ricean channels. The selected transmit antennas are those that maximize the link layer throughput of MIMO channels. A closed-form expression for the system throughput with perfect channel state information (CSI) is derived. Extensive simulation results are provided for the system performance assessment, showing that the cross-layer T-AS scheme always assigns the transmission to the antenna combination which sees better channel conditions, resulting in a substantial improvement over the optimal capacity-based T-AS approach.