CSMA/CD用作EPON上行接入控制方案的研究  

The study of using CSMA/CD for EPON multi-access control

作　　者：沈晓群[1] 季晓飞[1] 范戈[1] 

机构地区：[1]上海交通大学"区域光纤通信网与新型光通信系统"国家重点实验,上海200030

出　　处：《光纤与电缆及其应用技术》2003年第3期29-32,共4页Optical Fiber & Electric Cable and Their Applications

摘　　要：　由于以太网成熟的技术和广泛的应用,EPON(以太网无源光网络)接入技术已经成为光接入网技术中的最新发展趋势。用N×N无源星型耦合器来取代1×N无源星型耦合器,通过在无源星形耦合器处添加光环回机制,摆脱了距离的限制,成功地将传统的CSMA/CD(载波侦听多路存取/冲突检测)协议用于EPON的上行接入控制。Because of the mature technology and broad application of ethernet, ethernet passive optical network (EPON) is becoming the most popular technology in the optical access network. We use N×N star coupler instead of 1×N star coupler, and by redirecting the upstream lightwave through the star coupler, we have got rid of distance limitation and used traditional CSMA/CD for EPON upstream multiaccess control successfully.

关 键 词：无源光网络 接入网 以太网 载波侦听多路存取 冲突检测 CSMA/CD EPON 

分 类 号：TN915.6[电子电信—通信与信息系统]