An improved distributed power-control scheme for cellular mobile systems

Authors

HAMID FARROKHI
MOSTAFA REZAYI

DOI

10.3906/elk-1006-473

Abstract

In this paper, a new distributed power-control (DPC) scheme is suggested to improve convergence speed and system robustness against carrier-to-interference-ratio (CIR) estimation errors. To expedite the CIR balancing in our DPC scheme, an instability detection rule was used. As compared with Foschini's DPC (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

First Page

141

Last Page

148

Recommended Citation

FARROKHI, HAMID and REZAYI, MOSTAFA (2012) "An improved distributed power-control scheme for cellular mobile systems," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 20: No. 1, Article 11. https://doi.org/10.3906/elk-1006-473
Available at: https://journals.tubitak.gov.tr/elektrik/vol20/iss1/11