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Application of distributed MIMO waterfilling algorithm for broadband channels and its performance in the presence of CSI errors

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3 Author(s)
Amod J. G. Anandkumar ; Advanced Signal Processing Group, Dept of Electronic and Electrical Engineering, Loughborough University, Loughborough, U K. LE11 3TU ; Sangarapillai Lambotharan ; Jonathon A. Chambers

A method for the application of the MIMO iterative waterfilling algorithm for broadband channels is presented. The modified game-theoretic problem formulation and its Nash equilibrium are presented, along with conditions for its existence and uniqueness and for the convergence of the distributed algorithm. The method is verified using a simple design example. The performance of the MIMO iterative waterfilling algorithm in the presence of errors in the channel state information (CSI) is also presented.

Published in:

Cognitive Wireless Systems (UKIWCWS), 2009 First UK-India International Workshop on

Date of Conference:

10-12 Dec. 2009