Analysis of Multiple Queue Model in Cellular Networks with Sub Rating of Channels

In cellular Networks we generally consider a single queuefor each cell, some authors proposed a model with a dedicated queuefor each transceiver in the cell. We have extended the idea ofdedicated queue for each transceiver in the cell with sub-ratingchannels to improve the Quality of Service (QOS) of the system. Inthis paper we have compared three models, in model-I we used guardchannels to give priority to handoff attempts and a buffer for finitesize is provided to give priority to handoff data attempts, further inmodel-II we have taken sub-rating channel scheme (SCS). In subrating scheme a full rate channel is temporarily divided into two halfrate channels in the blocked cell; one half rate channel serve theoriginating call and another serves handoff call. We proposed adedicated queue for each transceiver in the cell with sub-rating inmodel-III. The Fixed Channel Assignment Scheme is considered forall models. The probabilities of handoff failure, blocking probabilityof new calls, forced termination of handoff calls, probability of noncompleted calls for all models are calculated for varying assumed ofvalues arrival rate of new data calls, arrival rate of new voice calls,buffer size of channels and service rates. We compared and analyzedthe numerical results to validate the proposed models.