[1]孙茂鑫,钱红燕. SDN网络环境下的MPTCP的移动切换机制[J].计算机技术与发展,2016,26(06):11-15.
　SUN Mao-xin,QIAN Hong-yan. Mobile Handover Mechanism Based on MPTCP in SDN Environment[J].,2016,26(06):11-15.
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 SDN网络环境下的MPTCP的移动切换机制()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
26
期数:
2016年06期
页码:
11-15
栏目:
智能、算法、系统工程
出版日期:
2016-06-10

文章信息/Info

Title:
 Mobile Handover Mechanism Based on MPTCP in SDN Environment
文章编号:
1673-629X（2016)06-0011-05
作者:
 孙茂鑫; 钱红燕
 南京航空航天大学 计算机科学与技术学院
Author(s):
 SUN Mao-xin; QIAN Hong-yan
关键词:
 ; 软件定义网络; 移动切换; 多路径传输控制协议; 多指标切换; 无缝切换
Keywords:
 ; SDN; mobile handover; MPTCP; multiple parameters handover; seamless handover
分类号:
TP311
文献标志码:
A
摘要:
 无线网络中,移动设备在不同的接入点( AP)之间切换是不可避免的问题。现有的移动切换机制不能真正地实现无缝切换,并且切换时信令开销大,切换时延长。实现移动设备的快速切换以及在切换中保证QoS,已经成为无线网络的研究热点。为提高无线切换时的网络性能,文中采用软件定义网络( SDN )架构,提出一种基于多路径传输控制协议( MPTCP)的移动切换机制。目的是使移动设备在不同AP间实现无缝切换以及保证在切换过程中网络保持较高的吞吐量。并且为了提高网络的利用率和性能,文中利用信号强度值、丢包率和网络时延共同决定切换网络,可以充分利用各AP的网络带宽。实验结果表明,该机制可以有效地实现移动设备的无缝切换,保证了服务质量,并且避免了乒乓效应,提高了网络性能。
Abstract:
 Handover of mobile equipment between different access points is an inevitable problem in the wireless network. There are many problems in the existing mobile handvoer mechanism,which cannot ensure the seamless handover,and have serious handover signaling o-verhead with long handover delay. How to satisfy the user’ s quality of service and achieve seamless handover becomes a very worth of study in the field of wireless communication network. To improve the performance of the wireless network when roaming,in this paper, a mechanism of handover is proposed based on multipath TCP and software defined networking. It aims to achieve the seamless handover between different AP for mobile equipment and keeps high throughput of network in the handover process. In order to improve utilization and performance,the RSS,loss rate and delay are adopted to make handover decision,whcih can make full use of network bandwidth. Fi-nally,the experiment shows that the proposed handover mechanism can achieve seamless handover and ensure QoS,avoiding the“ping-pong” effect and improving the network performance.

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更新日期/Last Update: 2016-09-19