SDN环境下基于MPTCP协议的切换管理

发布时间：2018-06-13 04:15

本文选题：软件定义网络 + 移动切换　；参考：《应用科学学报》2017年01期

【摘要】：为提高无线切换时的网络性能,采用软件定义网络架构并提出基于多路径传输控制协议的移动切换管理方法.根据所提出的基于模糊逻辑的多属性切换算法进行切换判决,综合采用当前信号强度(received signal strength,RSS),预测RSS值以及可用带宽作为网络参数来设计模糊逻辑控制器.然后计算各参数的隶属度值,通过计算综合性能评估值进行切换判决.在切换管理的实现过程中,传输层采用多路径传输控制协议,允许建立多条传输路径传输数据.设备可利用该协议同时连接多个接入点,一条链路发生切换时其余链路继续保持通信.最后搭建了一个Open Flow试验床来验证该切换管理方法,结果表明该方法可实现设备的无缝切换,保证用户服务质量.
[Abstract]:In order to improve the network performance of wireless handoff, the network architecture is defined by software and a mobile handoff management method based on multipath transmission control protocol is proposed. According to the proposed multi-attribute handoff algorithm based on fuzzy logic, the fuzzy logic controller is designed by synthetically using the current signal intensity received signal strength signal, predicting the value of signal and the available bandwidth as network parameters. Then, the membership value of each parameter is calculated, and the switching decision is made by calculating the comprehensive performance evaluation value. In the implementation of handoff management, multipath transmission control protocol is adopted in the transport layer, which allows the establishment of multiple transmission paths to transmit data. The device can use the protocol to connect multiple access points simultaneously, and the remaining links continue to communicate when one link is switched. Finally, an Open flow test bed is built to verify the proposed handover management method. The results show that the proposed method can achieve seamless switching of devices and ensure the quality of service of users.
【作者单位】：南京航空航天大学计算机科学与技术学院;
【基金】：江苏省科技项目基金(No.BY2013095-2-10) 澳门特别行政区科学技术发展基金(No.063/2010/A)资助
【分类号】：TN915.04

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