OBS边缘节点突发收发卡的设计与实现  

Design and implementation of optical burst transceivers for OBS edge routers

作　　者：陆敏贵[1] 吴龟灵[1] 李新碗[1] 陈建平[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"国家重点实验室,上海200240

出　　处：《光通信技术》2007年第12期31-34,共4页Optical Communication Technology

基　　金：国家自然科学基金(90204006)资助;国家863计划(2006AA01Z242)资助;上海市曙光计划资助。

摘　　要：研究光突发交换(OBS:Optical Burst Switching)网络中边缘节点收发卡的设计与实现,在FP-GA内部设计实现了基于空间过采样技术的百兆光突发数据的恢复与接收,同时通过控制激光器驱动电路实现了光路数据的突发发送。实验结果表明,该方案可以实现突发数据的正确发送和接收,并可以避开相位锁定、时钟恢复所需的等待时间。从而减少突发包头的同步码开销,提高了带宽利用率。A 100Mb/s optical burst transceiver is designed and implemented in this paper. Spatial oversampling technology is adopted for optical burst data recovery. Burst transmitter is implemented through controlling driver circuit of laser device. The test results show that this scheme can implement correctly burst data＇s transmission and reception. It can also reduce preamble overhead in burst packet head and raise bandwidth utility through eliminating waiting time needed by phase lock and clock recovery.

关 键 词：突发发送 突发接收 空间过采样技术 时钟数据恢复 

分 类 号：TN929.11[电子电信—通信与信息系统] TN915.01[电子电信—信息与通信工程]