Call Quality and its Parameters Measurement in Telecommunication Network

摘要

The measurement of call quality from end users perspective is emerging area of research on speech quality in telecommunication networks. Our idea is focused at deriving and developing a system to measure certain call parameters during the call and provide average scores at the end of the call. Call quality for the bundle of calls is derived based on the aggregation of successful call parameters which gives the overall call quality measure. The call parameters used in our research were Signal Strength, the successful call rate, normal drop call rate, handover drop rate. GPS coordinates are also used to locate the location and quality of the individual calls. The methodology of extracting the parameters used is basically the signal strength and number of successful and un-successful calls in a bundle of 10 calls. At the end of 10th call the average parameter value has been computed for each of the parameter mentioned that are used for deriving the final call quality. Also a model using the sms feature for tackling the critical quality has been proposed and implemented. The results obtained were quiet comparable with the subjective scores. The results comparison with the subjective scores would be addressed in subsequent work. Finally the basic bandwidth quality measurement approach is presented which addresses the issue of low bandwidth quality with respect to both user and the operator.