| 一种支持实时与非实时多业务的复合优先切换策略 |
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| 引用本文： | 刘德全,何晨. 一种支持实时与非实时多业务的复合优先切换策略[J]. 上海交通大学学报, 2004, 38(11): 1841-1846 |
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| 作者姓名： | 刘德全 何晨 |
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| 作者单位： | 上海交通大学,电子工程系,上海,200030;上海交通大学,电子工程系,上海,200030 |
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| 基金项目： | 国家自然科学基金资助项目(60272082) |
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| 摘 要： | 针对同时支持实时与非实时业务的多业务移动通信系统,提出了改进的预留信道和抢占优先相结合的切换策略,分析了非实时业务平均传输延迟、实时业务阻塞率、实时业务强制中断概率等系统性能．仿真结果表明,该策略在非实时业务的服务质量受到较小影响的情况下,通过自适应调整所采用的优先权,使实时业务强制中断概率明显减小,为移动用户提供了更好的服务质量．
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| 关 键 词： | 移动通信系统 切换 抢占优先 多业务 |
| 文章编号： | 1006-2467(2004)11-1841-06 |
| 修稿时间： | 2003-06-30 |
A Combined Priority Handoff Strategy for Integrated Real-Time and Non Real-Time Multiple Services |
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| LIU De-quan,HE Chen. A Combined Priority Handoff Strategy for Integrated Real-Time and Non Real-Time Multiple Services[J]. Journal of Shanghai Jiaotong University, 2004, 38(11): 1841-1846 |
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| Authors: | LIU De-quan HE Chen |
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| Abstract: | This paper proposed an improved handoff strategy with combination of channel reservation and preemptive priority for integrated real-time and non real-time service cellular mobile systems. Average transmission delay of non real-time serveice, blocking probability of real-time service and forced termination probability of real-time service performances were analyzed. The simulation results show that the forced termination probability of real-time service is significanlty reduced with the strategy without sacrificing non real-time service QoS much. This strategy improves the channel utilization and provides better QoS for mobile users by adjusting the priority adaptively. |
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| Keywords: | mobile communication system handoff preemptive priority multiple services |
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