| 端到端IP组播技术及其在PIS中的应用 |
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| 引用本文： | 孙大为,曲博,李晓,江早,常桂然.端到端IP组播技术及其在PIS中的应用[J].计算机工程,2010,36(16):232-233. |
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| 作者姓名： | 孙大为 曲博 李晓 江早 常桂然 |
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| 作者单位： | 1. 东北大学信息科学与工程学院,沈阳,110004
2. 沈阳地铁有限公司,沈阳,110011 |
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| 基金项目： | 沈阳地铁一号线通信基金资助项目，辽宁省自然科学基金资助项目 |
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| 摘 要： | 针对IP组播在网络层中使用UDP协议不能有效保证数据可靠传输的问题，提出一种高效、稳定的在端系统间保证数据可靠传输系统。使用CRC-32、端到端差错恢复和端到端拥塞控制等关键技术。该技术成功应用于沈阳地铁乘客资讯系统(PIS)。测试结果表明，该系统保持IP组播技术节省带宽资源、提高数据传输效率等优点，保证了数据的可靠传输。
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| 关 键 词： | IP组播 可靠传输 差错恢复 拥塞控制 |
End-to-end IP Multicast Technology and Its Application in Passenger Information System |
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| SUN Da-wei,QU Bo,LI Xiao,JIANG Zao,CHANG Gui-ran.End-to-end IP Multicast Technology and Its Application in Passenger Information System[J].Computer Engineering,2010,36(16):232-233. |
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| Authors: | SUN Da-wei QU Bo LI Xiao JIANG Zao CHANG Gui-ran |
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| Affiliation: | (1. College of Information Science and Engineering, Northeastern University, Shenyang 110004; 2. Shenyang Metro Co., Ltd., Shenyang 110011) |
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| Abstract: | Aiming at the problems that IP multicast depending on UDP protocol in the network layer can not guarantee reliable transmission, an end-to-end reliable transmission system with the properties of high-speed, high efficiency and stability to all kinds of application is proposed, the key technologies include CRC-32, end-to-end error recovery, end-to-end congestion control and so on. It is successfully applied in Passenger Information System(PIS) of Shenyang subway. The implementation of end-to-end reliable transmission system is tested and analyzed. Test results indicate that the system can guarantee reliable transmission among the end-to-end systems, as well as maintaining the advantages of saving network bandwidth resources and improving the data transmission efficiency in IP multicast. |
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| Keywords: | IP multicast reliable transmission error recovery congestion control |
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