Title: An iterative algorithm for multi-user inference channel based on subspace projection

Authors: Qinmin Wang; Zhongpei Zhang; Ming Liu; Fengke Jie

Addresses: National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731, China ' National Key Laboratory of Science and Technology on Communications, University of Electronic Science and Technology of China, Chengdu 611731, China ' Information System Engineering Institute, Information Engineering University PLA, Zhengzhou 450001, China ' Information System Engineering Institute, Information Engineering University PLA, Zhengzhou 450001, China

Abstract: Considering a Multiple Input Multiple Output (MIMO) interference channel with K-user pairs, an iterative algorithm based on projection is proposed. In this algorithm, the objective function is the weighted sum of leakage of interference and desired signal out of their corresponding subspace. This algorithm can increase distance between interference subspace and desired signal subspace. Simulation results show that sum rate of the adjustable weight iteration algorithm is superior to other schemes.

Keywords: wireless networks; multi-user interference channels; degree of freedom; space projection; subspace projection; simulation; multiple input multiple output; MIMO channels; adjustable weight iteration.

DOI: 10.1504/IJWMC.2012.051515

International Journal of Wireless and Mobile Computing, 2012 Vol.5 No.4, pp.374 - 379

Received: 06 Jan 2012
Accepted: 23 Feb 2012

Published online: 20 Jan 2013 *

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