Title :
A sufficient convergence condition for the quantized iterative water-filling algorithm
Author :
Gohary, Ramy H. ; Yanikomeroglu, Halim
Author_Institution :
Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, ON, Canada
Abstract :
In this paper we derive a sufficient condition under which the iterative water-filling (IWF) algorithm with quantized noise-plus-interference levels is guaranteed to converge and has a unique Nash equilibrium. This condition is shown to approach the corresponding condition for standard IWF when the quantization resolution or the transmission powers are sufficiently high.
Keywords :
OFDM modulation; convergence of numerical methods; frequency division multiple access; game theory; iterative methods; quantisation (signal); radiocommunication; radiofrequency interference; Nash equilibrium; OFDMA; convergence condition; open spectrum system; quantization resolution; quantized iterative water-filling algorithm; quantized noise-plus-interference level; transmission power; Convergence; Nickel; Quantization; Receivers; Resource management; Standards; Transmitters;
Conference_Titel :
Signal Processing Advances in Wireless Communications (SPAWC), 2012 IEEE 13th International Workshop on
Conference_Location :
Cesme
Print_ISBN :
978-1-4673-0970-7
DOI :
10.1109/SPAWC.2012.6292898
