Title :
Convergence of Iterative Water-Filling With Quantized Feedback: A Sufficient Condition
Author :
Gohary, Ramy H. ; Yanikomeroglu, Halim
Author_Institution :
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, ON, Canada
fDate :
5/1/2012 12:00:00 AM
Abstract :
In this paper, the iterative water-filling (IWF) algorithm is considered when the noise-plus-interference levels fed back from the receivers are quantized. A sufficient condition for this algorithm to have a unique Nash equilibrium is derived. This condition is shown to approach the corresponding condition for standard IWF when the quantization resolution or the transmission power are sufficiently high.
Keywords :
convergence; game theory; iterative methods; radiofrequency interference; wireless channels; IWF algorithm; iterative water-filling convergence; noise-plus-interference levels; quantization resolution; quasi staticorthogonal subchannels; receivers; transmission power; unique Nash equilibrium; wireless system; Convergence; Games; Nickel; Quantization; Receivers; Resource management; Transmitters; Convergence; Nash equilibrium; noncooperative games; nonnegative matrix; power allocation;
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2012.2188715
