ATM网络上多播通信的错误控制方案

P. Godlewski, M. Braneci, A. Serhrouchni
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引用次数: 6

摘要

基于atm的传输系统遭受蜂窝丢失的困扰,特别是由于拥塞造成的蜂窝丢失,这会严重降低传输质量。前向纠错(FEC)技术已被提出用于蜂窝丢失恢复,但由于拥塞蜂窝丢失难以有意义地预测,因此仍然受到限制。提出了一种基于自适应前向纠错(AFEC)机制的协议。该协议的设计是为了尽量减少传输延迟的影响,并满足所提供服务的延迟限制。所提出的编码检查点对多点通信,并处理单元而不是消息,以提高效率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An error control scheme for multicast communications over an ATM network
ATM-based transmission systems suffer from cell losses, caused particularly by congestion, which can seriously degrade the transmission quality. Forward error correction (FEC) techniques have been proposed for cell loss recovery but are still limited because congestion cell loss is hard to predict meaningfully. We propose a protocol based on an adaptive forward error correction (AFEC) mechanism. The protocol has been designed especially for minimizing the effect of transmission delays, and to fulfil the delay constraints of services to be provided. The proposed coding is examined for point-to-multipoint communications, and handles cells rather than messages to increase the efficiency.<>
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