宽带网络中业务模型的性能评价

Performance Evaluation of Service Models in Broadband Network

文中介绍了异步传输模式中的四种业务模型:恒定比特率业务模型CBR、实时可变比特率业务模型rt-VBR和非实时可变比特率业务模型nrt-VBR、可用比特率业务模型ABR,其中详细分析并讨论了非实时的可变比特率和可用比特率两种业务模型,通过对这两种模型进行性能评价以阐明其基本特点。

In this paper,four kinds of traffic models such as constant bit rate and real-time variable bit rate(VBR),non-real-time variable bit and available bit rate(ABR) are presented.Among these models,non-real-time variable bit model and available bit rate model are discussed in detail.And presents simulation results to demonstrate characteristics of these models.