Title :
Stochastic power control for CDMA over Rayleigh fading channels
Author :
Roy, Subhadeep ; Duman, Tolga M.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
We propose a decentralized stochastic power control algorithm which exhibits superior performance over Rayleigh fading channels as compared to the existing methods. The algorithm is obtained by a modification of the original stochastic-power control (SPC) algorithm proposed in S. Ulukus et al. (1998), and it takes the time variations of the channel into account, while updating the transmit powers. We illustrate the performance enhancement provided by several practical examples. Furthermore, we combine the new algorithm and SPC with bit estimation developed in P. Akula et al. (2002) and study its performance.
Keywords :
Rayleigh channels; code division multiple access; power control; stochastic processes; CDMA; Rayleigh fading channel; bit estimation; decentralized stochastic power control algorithm; transmit power; Convergence; Fading; Gain measurement; Interference suppression; Iterative algorithms; Matched filters; Multiaccess communication; Power control; Power engineering and energy; Stochastic processes;
Conference_Titel :
Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE
Print_ISBN :
0-7803-8344-3
DOI :
10.1109/WCNC.2004.1311644