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Technical Program

Paper Detail

Paper:	SPCOM-P12.5
Session:	MIMO: Precoding / Beamforming
Time:	Friday, May 19, 14:00 - 16:00
Presentation:	Poster
Topic:	Signal Processing for Communication: MIMO precoder/decoder design, receiver algorithms
Title:	Co-ordinate Interleaved Spatial Multiplexing with Channel Knowledge at Transmitter and Receiver
Authors:	K. V. Srinivas, J. Klutto Milleth, R. D. Koilpillai, K. Giridhar, Indian Institute of Technology Madras, India
Abstract:	Spatial multiplexing (SM) over multiple-input multiple-output wireless channels provides significant capacity gains. In a SM scheme, the eigenmode having the least signal-to-noise ratio (SNR), degrades the overall error rate performance. In this paper, we propose co-ordinate interleaved spatial multiplexing that maximizes the minimum SNR over all eigenmodes. This linearly decodable SM scheme needs the knowledge of the right singular vectors of the channel at the transmitter, and the singular values and left singular vectors at the receiver. We derive the SNR expressions for the proposed scheme and compare its performance with other closed-loop schemes using computer simulations.