Analysis and study of a handoff scheme with multiple priority strategies

• 作 者: 李波 吴成柯 椋本介士 福田明
• 机 构: State Key Laboratory on ISN, Institute of Communication Engineering, Xidian University, Xi'an 710071
• 出 处: Science in China(Series E:Technological Sciences)
• 发表日期: 2000年04期
• 关键词: priority reservation calls voice iteration traffic modeled originating approxima

A handoff scheme with the combination of channel reservation and preemptive priority in integrated voice/data cellular mobile systems is proposed. In the scheme, calls are divided into three different classes: handoff voice calls, originating voice calls, and data calls. An access strategy with the combination of channel reservation and preemptive priority is provided to a handoff voice call. Furthermore, in order to improve the system capacity for the total voice traffic, preemptive priority is also given to partial originating voice calls. The system is modeled by a two-dimensional Markov chain. Both the iteration method and the approximate method are used to calculate and analyze some of the most important performance measures of the system. It is shown that our scheme can provide better quality of services for mobile subscribers.

A handoff scheme with the combination of channel reservation and preemptive priority in integrated voice / data cellular mobile systems is proposed. In the scheme, calls are divided into three different classes: handoff voice calls, originating voice calls, and data calls. An access strategy with the combination of channel reservation and preemptive priority is provided to a handoff voice call. Furthermore, in order to improve the system capacity for the total voice traffic, preemptive priority is also given to partial originating voice calls. The system is modeled by a two Both the iteration method and the approximate method are used to calculate and analyze some of the most important performance measures of the system. It is shown that our scheme can provide better quality of services for mobile subscribers.