AN ASSESSMENT OF RADIO FREQUENCY FAULT MANAGEMENT IN CELLULAR NETWORKS

Publication Date : 01/08/2006

Author(s) :

D. D. Dajab, A. A. Mas’ud.

Volume/Issue :

Volume 1

Issue 1

(08 - 2006)

Abstract :

The challenge to maintain Quality of Service (QoS) with subscribers in wireless networks inherently demands monitoring, fault reporting and mitigative measures. The paper analyses logged data on Radio Frequency (RF) level statistics and traffic from a Code Division Multiple Access (CDMA) network in terms of some Key Performance Indicators (KPI).The analyses indicate that the traffic carried, the call drop rate, and the call set-up success rate in a cell area are highly sensitive to RF faults which deplete system capacity in CDMA based networks as a result of the interference problems created such as intersymbol interference and adjacent channel interfence.Within the study period call drop rates fluctuated from 4% to 1.5% with carried traffic peaking at the lowest drop rate periods. The call set-up success rate also was averagely 2% less than threshold values indicating the existence of RF optimization problems

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