基于TCP和CDMA1x的地震传输共享解决方案
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摘要
地震数据处理系统和分析系统对实时数据的高可靠性和低延时要求,决定了组建地震实时数据传输共享应用平台必须采用可靠性传输协议,并兼顾安全性。提出了采用改进的传输控制协议、虚拟专用拨接网络(VPDN)、带宽适应算法在CDMA1x网络中构建地震实时数据传输共享平台,将传输率提高了近10%,达到了99.95%,RTT延时从平均1200ms降到了250ms左右,满足了地震数据处理系统的要求。
Requiring high reliability and low delay of real-time data in earthquake data disposal system and analysis system,it is demanded to establish real-time data transferring and sharing platform with reliable transport protocol,and given attention to security.One solution is provided that utilizes enhanced TCP,VPDN,bandwidth adaptation algorithm to build the platform in CDMA1x networks,as result,it increases successful rate about 10 percent,reaches over 99.95 percent,reduces delay 1 200 ms to about 250 ms,and satisfies all requires about earthquake data disposal system.
Requiring high reliability and low delay of real-time data in earthquake data disposal system and analysis system,it is demanded to establish real-time data transferring and sharing platform with reliable transport protocol,and given attention to security.One solution is provided that utilizes enhanced TCP,VPDN,bandwidth adaptation algorithm to build the platform in CDMA1x networks,as result,it increases successful rate about 10 percent,reaches over 99.95 percent,reduces delay 1 200 ms to about 250 ms,and satisfies all requires about earthquake data disposal system.
引文
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[2]Kiyomoto S,Tanaka T,Yoshida M,et al.Design of self-delegationfor mobile terminals[J].IPSJ Digital Courier,2005,1(8):282-292.
[3]Wang X G,Min G,Mellor J E,et al.An adaptive QoS frameworkfor integrated cellular and WLAN networks[J].Computer Net-works,2005,47(2):167-183.
[4]敖理达.虚拟专用网(VPN)技术与应用[J].数据通信,2001,(1):56-58.
[5]Hogie K,Criscuolo E,Parise R.Using standard internet protocolsand applications in space[J].Computer Networks,2005,47(5):603-650.
[6]李方敏,叶澄清.支持最少速率保证的UDP拥塞控制机制[J].计算机研究与发展,2001,38(8):988-993.
[7]Neglia G,Falletta V,Bianchi G.An analytical model of a new pac-ket marking algorithm for TCP flows[J].Computer Networks,2006,50(8):1176-1191.
[8]蓝晓雱,童小念.PPP协议在GPRS无线网络中的嵌入式实现[J].中南民族大学学报(自然科学版),2005,24(4):72-75.
[9]宁孟丽,李颖.基于VPDN技术的无线数据传输系统[J].中国科技信息,2005,13(7):51-62
[10]辛明君,李洪,夏小明.VPN技术综述(上)[J].电信技术,2000,(4):12-15.
[11]韩芳,廖铁军.GPRS远程采集地震记录的传输质量控制解决方案[J].重庆大学学报(自然科学版),2005,28(4):60-64.
[12]Calvagna A,Corte A L,Sicari S.Mobility and quality of serviceacross heterogeneous wireless networks[J].Computer Networks,2005,47(2):203-217.
[13]Gozdecki J,Jajszczyk A.Quality of service terminology in IP net-works[J].IEEE Communications Magazine,2003,41(3):153-159.
[14]Mahanti A,Eager D L,Vernon M K.Improving multirate conges-tion control using a TCP Vegas throughput model[J].ComputerNetworks,2005,48(2):113-136.
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