Call Blocking Performance Study for PCS Networks under More Realistic Mobility Assumptions

Abstract. In the micro-cell-based PCS networks, due to the high user mobility, handoffs occur more frequently. Hence, the classical assumptions, such as the exponential assumptions for channel holding time and call inter-arrival time, may not be valid. In this paper, we investigate the call blocking performance for PCS networks using a semi-analytic and semi-simulation approach. We first construct a simulation model as the base for our performance study, using which the handoff traffic is studied. Then we present a few possible approximation models from which analytical results for call blocking performance metrics can be obtained and compared with the simulation results. We show that for a certain parameter range, such approximations may provide appropriate results for call blocking performance. Finally, using the simulation model, we investigate how various factors, such as the high moments, the variance of cell residence time, mobility factors and the new call traffic load affect th...

• Type: Journal
• Year: 2002
• Where: TELSYS
• Authors: Helen Zeng, Yuguang Fang, Imrich Chlamtac
• Keywords: PCS Networks, Performance, Simulation Model, TELSYS 2002