Performance study of close-loop power control algorithms for a cellular CDMA system

Sim, Moh Lim and Gunawan, Erry and Song, Boon Hee and Soh, Cheong Boon (1999) Performance study of close-loop power control algorithms for a cellular CDMA system. IEEE Transactions on Vehicular Technology, 48 (3). pp. 911-921. ISSN 0018-9545

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Abstract

Performance of a reverse link code-division multiple-access (CDMA) system with fast close-loop power control algorithms is studied. It is found that if fast close-loop power control algorithm functions effectively, the speed of the mobile unit is in the range such that its Doppler frequency is less than one tenth of the power control updating rate. This paper also proposes a new predictive power control algorithm with better performance in terms of system capacity than the conventional and adaptive step size algorithms. An increase in system capacity as high as 22% compared with the conventional algorithm can be achieved depending on the mobile velocity.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering (FOE)
Depositing User: Ms Rosnani Abd Wahab
Date Deposited: 09 Sep 2011 01:35
Last Modified: 16 Jan 2014 03:51
URI: http://shdl.mmu.edu.my/id/eprint/2732

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