標題: Traffic control approaches for voice over ATM networks
作者: Chen, YC
Chan, CT
Hu, SC
Wang, PC
資訊工程學系
Department of Computer Science
關鍵字: circuit emulation;CBR;VBR;quality of service;delay-jitter
公開日期: 1-十二月-1998
摘要: In this paper we present two traffic control approaches, a circuit emulation traffic control (CETC) and an adaptive priority traffic control (APTC) for supporting voice services in ATM networks. Most voice services can be handled as CBR traffic, this causes a lot of wasted bandwidth. Sending Voice through VBR(variable bit rate) may be a better alternative. because it allows the network to allocate voice bandwidth on demand. In CETC. the service discipline guarantees the quality of service (QOS) for voice circuits. Through mathematical analysis. we show that CETC features an adequate performance in delay-jitter. Moreover, it is feasible in implementation. We also present an APTC approach which uses a dynamic buffer allocation scheme to adjust the buffer size based on the real traffic need, as well as employs an adaptive priority queuing technique to handle various delay requirements for VER voice traffic. It provides an adequate QOS for voice circuits in addition to improving the multiplexing gain. Simulation results show that voice traffic get satisfied delay performance using our approaches. It may fulfill the emerging needs of voice service over ATM networks.
URI: http://hdl.handle.net/11536/31691
ISSN: 0916-8516
期刊: IEICE TRANSACTIONS ON COMMUNICATIONS
Volume: E81B
Issue: 12
起始頁: 2380
結束頁: 2391
顯示於類別:期刊論文