Analysis of a joint voice-data cellular network with queued handoffs and new calls

A priority queueing system for voice and data integration in cellular mobile networks, where handoff requests are inserted in a head of line (HOL) queue with finite capacity is analysed. Priority is given to voice handoffs over data handoffs to avoid forced termination for voice users. New call attempts which find channels occupied are also inserted in a head of line queue with finite capacity with priority given to voice calls over data calls. Queueing offers a means of increasing total carried traffic while improving the perceived service quality. For this priority policy, a performance analysis is conducted when mean service times for voice and data are different. The performance results show blocking and forced termination probabilities, waiting time for voice calls and delay experienced by data calls.