An improved distributed power-control scheme for cellular mobile systems

Authors : Hamid FARROKHI, Mostafa REZAYI

Pages : 141-148

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In this paper, a new distributed power-control insert ignore into journalissuearticles values(DPC); scheme is suggested to improve convergence speed and system robustness against carrier-to-interference-ratio insert ignore into journalissuearticles values(CIR); estimation errors. To expedite the CIR balancing in our DPC scheme, an instability detection rule was used. As compared with Foschini`s DPC insert ignore into journalissuearticles values(FDPC); method, numerical results indicated that the proposed algorithm achieves performance improvements in terms of outage probability as well as in the algorithm`s convergence speed. More specifically, by appropriate selection of some parameters, the algorithm speed reduces from about 90 iterations in FDPC to 9 iterations in the proposed algorithm. The system robustness against CIR estimation errors was also explored.
Keywords : Cellular systems, CIR balancing, distributed algorithms, instability detection, power control