• VASAMSETTI VIJAY BABU
• K. J. SILVA LORRAINE

In wireless communication systems with multiple users, the near–far effect and the co-channel interferences decrease the spectral efficiency and system performance. An efficient known method to combat these destructive effects is to properly adjust the transmit powers. A practical and efficient way for power control (PC) in cellular communication systems is the distributive power control (DPC). The aim of power control is to assign each user such transmitter power level that all users satisfy their QOS (Quality of Service) requirements by mitigating near –far effect and co-channel interference. The distributed power control algorithms has been studied and evaluated in this work. These algorithms include Distributed Power control algorithm (DPC), Fully Distributed Power Control algorithm (FDPC), Distributed Constrained Power Control algorithm (DCPC), Constrained Second Order Power Control algorithm (CSOPC), Fixed Step Distributed Power Control algorithm (FSDPC), and Multi Objective Totally Distributed Power Control Algorithm (MOTDPC). The performance of the algorithms will be observed based on the rate of convergence to the target signal-to-interference ratio, the rate of convergence of the power, and the rate of convergence of utilities. Multi Objective Totally Distributed Power Control Algorithm (MOTDPC) has been proposed as an enhancement to one of the studied algorithms based on the concept of distributed Power control algorithm. It can be observed that MOTDPC has better convergence properties than FDPC algorithm.

DPC, FDPC, DCPC, CSOPC, FSDPC, MOTDPC

"POWER CONTROL IN CDMA USING MOTDPC ALGORITHM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.449-453, December-2018, Available :http://www.jetir.org/papers/JETIR1812058.pdf

"POWER CONTROL IN CDMA USING MOTDPC ALGORITHM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp449-453, December-2018, Available at : http://www.jetir.org/papers/JETIR1812058.pdf