| 有限规模下网络话音复用带宽的近似评估 |
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| 引用本文： | 张磊,沈连丰.有限规模下网络话音复用带宽的近似评估[J].东南大学学报(自然科学版),2003,33(4):384-387. |
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| 作者姓名： | 张磊 沈连丰 |
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| 作者单位： | 1. 东南大学移动通信国家重点实验室,南京,210096;解放军理工大学通信工程学院,南京,210007
2. 东南大学移动通信国家重点实验室,南京,210096 |
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| 基金项目： | 国家自然科学基金资助项目 ( 60 0 72 0 16) |
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| 摘 要： | 通过对网络话音业务的近似分析和仿真，建立了相对简单的复用带宽分配机制．首先对规模较小、性能参数比较确定的接入网进行建模和具体分析，然后利用网络仿真器对所建模型丢失率随带宽变化的特性等进行了仿真，对缓冲区与时延等影响网络话音复用带宽的重要因素进行了讨论．仿真结果表明，在网络为有限规模时，本文的结论对于确定区分服务中应当分配给IP电话业务的网络带宽有实用意义．
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| 关 键 词： | 网络话音业务 时延 复用带宽 丢失率 近似分析 |
| 文章编号： | 1001-0505(2003)04-0384-04 |
Evaluation on multiplexing bandwidth of finite scale packet-voice |
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| Zhang Lei , Shen Lianfeng.Evaluation on multiplexing bandwidth of finite scale packet-voice[J].Journal of Southeast University(Natural Science Edition),2003,33(4):384-387. |
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| Authors: | Zhang Lei Shen Lianfeng |
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| Institution: | Zhang Lei 1,2 Shen Lianfeng 1 |
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| Abstract: | A simpler assignment mechanism of multiplexing bandwidth is put forward based on approximate analysis and simulation. Firstly, model and analysis are given on small-scale access network with specific parameters. Secondly, the relation between loss-rate and bandwidth of our model is simulated on network simulator (ns-2). Then, discussions are carried on important issues related to multiplexing bandwidth such as delay and buffer. The simulation results show that the conclusion can be used to practically determine the bandwidth consumed by IP telephony in differentiated services architecture on small-scale access network. |
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| Keywords: | packet-voice delay multiplexing bandwidth loss-rate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
