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Multicode MIMO for High Data Rate Mobile Ad-hoc Networks

Srikanth, T and Manohar, S and Chockalingam, A and Milstein, LB (2006) Multicode MIMO for High Data Rate Mobile Ad-hoc Networks. In: IEEE Global Telecommunications Conference (GLOBECOM 06), NOV 27-DEC 01, 2006, San Francisco, CA.

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Abstract

In a mobile ad-hoc network scenario, where communication nodes are mounted on moving platforms (like jeeps, trucks, tanks, etc.), use of V-BLAST requires that the number of receive antennas in a given node must be greater than or equal to the sum of the number of transmit antennas of all its neighbor nodes. This limits the achievable spatial multiplexing gain (data rate) for a given node. In such a scenario, we propose to achieve high data rates per node through multicode direct sequence spread spectrum techniques in conjunction with V-BLAST. In the considered multicode V-BLAST system, the receiver experiences code domain interference (CDI) in frequency selective fading, in addition to space domain interference (SDI) experienced in conventional V-BLAST systems. We propose two interference cancelling receivers that employ a linear parallel interference cancellation approach to handle the CDI, followed by conventional V-BLAST detector to handle the SDI, and then evaluate their bit error rates.

Item Type: Conference Paper
Additional Information: Copyright 2006 IEEE. Personal use of this material is permitted.However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Mobile ad-hoc networks;multicode V-BLAST;code domain interference;space domain interference;interference cancellation
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 12 Apr 2011 06:38
Last Modified: 12 Apr 2011 06:38
URI: http://eprints.iisc.ernet.in/id/eprint/36753

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