| 有优先级话音业务的PPRMA协议性能分析 |
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| 引用本文： | 吴晓文,吴诗其. 有优先级话音业务的PPRMA协议性能分析[J]. 电子科技大学学报(自然科学版), 1999, 28(3): 233-237 |
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| 作者姓名： | 吴晓文 吴诗其 |
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| 作者单位： | 1.深圳市中兴通讯股份有限公司 深圳 518004; |
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| 摘 要： | 研究了PRMA (分组预约多址协议)中话音业务具有多种优先级的情况,采用平衡点分析法(EPA)推导了话音分组丢失率和平均延迟时间的计算式。给出的计算和仿真结果表明,PRMA可以支持VBR语音和低速数据业务的综合传输,但当系统中有多种优先级别的语音终端时,系统容量存在门限效应。
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| 关 键 词： | 分组预约多址协议 无线通信网 优先级 分组丢失率 |
| 收稿时间： | 1998-12-17 |
Performance Analysis of PPRMA Protocol with Multiple Voice Priority |
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| Wu Xiaowen,Wu Shiqi. Performance Analysis of PPRMA Protocol with Multiple Voice Priority[J]. Journal of University of Electronic Science and Technology of China, 1999, 28(3): 233-237 |
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| Authors: | Wu Xiaowen Wu Shiqi |
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| Affiliation: | 1.Zhongxing Telecom Ltd Shenzhen 518004;2.Inst. of Information Systems,UEST of China Chengdu 610054 |
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| Abstract: | PRMA with multiple voice priority is investigated in this paper Analytical model is conducted and computer simulation is carried out, and equilibrium points analysis (EPA) method is used for its performance evaluation. The analytical and simulation results indicate that the PRMA can support the VBR voice traffic and low-bit-rate VBR data traffic. It is shown that if the number of high priority voice terminals exceeds a threshold, the PPRMA system will be blocked. |
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