Power control in wireless networks: characteristics and fundamentals
Wireless communications systems and networks
A Nash game algorithm for SIR-based power control in 3G wireless CDMA networks
IEEE/ACM Transactions on Networking (TON)
Channel Adaptive Power Control in the Uplink of CDMA Systems
Wireless Personal Communications: An International Journal
Power control for cellular communications with channel uncertainties
ACC'09 Proceedings of the 2009 conference on American Control Conference
An improved exponential distributed power control algorithm for MIMO cellular systems
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
CIC'02 Proceedings of the 7th CDMA international conference on Mobile communications
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This paper proposes a distributed power control algorithm that uses power levels of both current and previous iterations for power update. The algorithm is developed by applying the successive overrelaxation method to the power control problem. The gain from such a second-order algorithm is in faster convergence. Convergence analysis of the algorithm in case of feasible systems is provided in this paper. Using the distributed constrained power control (DCPC) as a reference algorithm, we carried out computational experiments on a DS-CDMA system. The results indicate that our algorithm significantly enhances the convergence speed of power control. A practical version of the proposed algorithm is provided and compared with the bang-bang type algorithm used in the IS-95 and the WCDMA systems. The results show that our algorithm also has a high potential for increasing the radio network capacity. Our analysis assumes that the system is feasible in the sense that we can support every active user by an optimal power control. When the system becomes infeasible because of high traffic load, it calls for other actions such as transmitter removal, which is beyond the scope of the present paper