Universiti Teknologi Malaysia Institutional Repository

Forward-link performance of CDMA cellular system

Ismail, M. S. and Abd. Rahman, Tharek (2000) Forward-link performance of CDMA cellular system. IEEE Transactions on Vehicular Technology, 49 (5). 1692 -1696. ISSN 0018-9545

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The impact of the propagation path-loss exponent on the forward performance of a direct-sequence code-division multiple-access (DS-CDMA) cellular system is investigated. For this purpose, a simple analytical model based on the inverse power-of-distance path-loss exponent law is developed. The problem of finding proper power-control factors is considered. According to path-loss exponent, the proper power-control factors are estimated for optimum performance. With these factors, results show that the capacity is reduced by a half by changing path-loss exponent from 4.5 to 2.5. For this range in path-loss exponent, power control can approximately double the capacity compared to the case of no power control

Item Type:Article
Uncontrolled Keywords:DS-CDMA cellular system analytical model capacity reduction digital cellular radio communication direct-sequence code-division multiple-access forward CDMA interference forward-link performance inverse power-of-distance ? law optimum performance power-control factors propagation path-loss exponent
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:1890
Deposited By: Dr Zaharuddin Mohamed
Deposited On:16 Mar 2007 07:22
Last Modified:01 Jun 2010 02:59

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