| OBS接入TCP和UDP的性能分析 |
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| 引用本文： | 左羽,吴龟灵,郭宏韬,李新碗,陈建平. OBS接入TCP和UDP的性能分析[J]. 高技术通讯, 2005, 15(6): 10-13 |
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| 作者姓名： | 左羽 吴龟灵 郭宏韬 李新碗 陈建平 |
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| 作者单位： | 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,200030;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,200030;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,200030;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,200030;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,200030 |
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| 基金项目： | 863计划(2002AA122022)，自然科学基金(90204006,60377013)，教育部博士点基金(20030248035)，博士后基金(2003034258)，上海市科委(022261001,036105009)资助项目 |
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| 摘 要： | 仿真分析了光突发交换(OBS)网络在接入TCP和UDP协议以及不同输入流量特性业务时的性能，以及端到端延迟和组装时延对TCP和UDP协议的数据发送速率的影响。结果表明：在正常负载下，OBS边缘节点对UDP协议的支持能力高于对TCP协议的支持能力；而无论在TCP还是UDP协议下，边缘节点对恒定比特率(CBR)流量的支持都要好于对指数分布(EXP)流量的支持；在TCP协议下，数据发送速率随端到端延迟和组装时延的增大而降低；而UDP协议下，数据发送速率不受延迟和组装时延的影响。
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| 关 键 词： | 光突发交换 接入性能 TCP/IP 丢包率 |
Performance of TCP and UDP over optical burst switched networks |
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| ZUO Yu,Wu Guiling,GUO Hongtao,Li Xinwan,Chen Jianping. Performance of TCP and UDP over optical burst switched networks[J]. High Technology Letters, 2005, 15(6): 10-13 |
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| Authors: | ZUO Yu Wu Guiling GUO Hongtao Li Xinwan Chen Jianping |
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| Abstract: | The capacity of OBS networks to support TCP and UDP services with different distribution characteristics is studied by simulation, The effect of end-to-end delay and/or burst assembly delay on the data rate are analyzed. The results show that for normal load, UDP protocol can get better support from OBS edge routers than TCP protocol; The performance of CBR traffic is better than that of EXP traffic no matter based on TCP or UDP protocol; For TCP protocol, Increasing end-to-end delay and/or burst assembly delay resulted in lower data rate. For UDP protocol, the data rate is not effected by end-to-end delay and/or burst assembly delay. |
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| Keywords: | optical burst switching (OBS) access capacity TCP/IP packet loss ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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