Title | An opportunistic power control algorithm for cellular network |
Publication Type | Journal Article |
Year of Publication | 2006 |
Authors | Leung, K. - K., and C. W. Sung |
Journal | Networking, IEEE/ACM Transactions on |
Volume | 14 |
Pagination | 470 -478 |
Date Published | jun. |
ISSN | 1063-6692 |
Keywords | cellular network, cellular radio, channel fluctuation, nonreal-time terminals, power control, power control algorithm, signal-to-interference ratio, target tracking, target-tracking power control, telecommunication control, wireless channels |
Abstract | We propose an opportunistic power control algorithm, which exploits channel fluctuation in order to maximize system throughput. The basic idea is that it instructs a transmitter to increase its power when the channel is good and to decrease its power when the channel is bad. The transmission rate is adjusted according to the received signal-to-interference ratio. The proposed algorithm is distributed and can be applied to systems in which the transmitters are connected to different receivers. We prove that the algorithm always converge to a unique fixed point and thus is stable. Simulation results show that a tremendous increase in system capacity can be achieved, when compared with other power control algorithms. Furthermore, the algorithm works well for nonreal-time terminals when other real-time terminals employ the target-tracking power control. It can also be extended to cases where maximum power constraint is imposed and soft handoff is executed |
URL | http://dx.doi.org/10.1109/TNET.2006.876148 |
DOI | 10.1109/TNET.2006.876148 |