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引用次数: 4
摘要
由于移动通信涉及在用户穿过覆盖区域时将正在进行的呼叫从一个小区转移到另一个小区，因此研究影响整体性能的因素非常重要。本文介绍了第三代(3G)网络中VoIP (voice over Internet Protocol)的实现过程，并对其性能进行了评价。本文还讨论了采用压缩技术减少所需带宽时的语音质量问题。每个数据包从源到目的地所花费的时间不同。估计语音分组的实际到达，并计算从源到目的的时延。结果显示了数据包到达率和流量负载对整体性能的影响。
Performance Evaluation of Voice Call over an IP based Network
As mobile communication involves transferring an ongoing call from one cell to another as the user moves through the coverage area, it is important to study the factors that affect the overall performance. This paper presents the process of voice over Internet Protocol (VoIP) in a third generation (3G) network with performance was evaluation. The paper also discusses the quality of voice when compression technique is used to reduce the amount of required bandwidth. Each packet takes a different amount of time to go from the source to its destination. The actual voice packet arrival is estimated and the delay from source to destination is calculated. The results show the impact of packet arrival rate and traffic load on the overall performance.
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