基于SDN的AP选择策略研究.doc

文档介绍：
基于 SDN 的 AP 选择策略研究
柳斌,寿国础**
(北京邮电大学信息与通信工程学院,北京 100876)
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10
摘要:随着无线数据的迅猛增长和无线终端的快速增加,我们现有的网络架构和接入点选择
策略已经渐渐不能满足用户日益增长的需求。在现有的网络架构上进行改进已经由于传统网
络架构的限制变得不够灵活。软件定义网络由于其控制与转发分离、可编程性、高创新性的
特点成为当前网络新架构的研究热点。在分析现有接入点选择策略的问题以及对 WLAN 接入
性能造成影响的因素后,本文提出了基于 SDN 的 WLAN 架构的新的接入点选择策略。通过仿
真对比该策略和传统接入策略、基于探测响应帧平均延迟的 MPD 策略,验证新的接入策略的
良好性能。
关键词:WLAN;SDN;OpenFlow;AP 选择策略;
中图分类号:
15
A Study on AP Selection Strategy in SDN Architecture
Liu Bin, Shou Guochu
(School of Information munication Engineering, Beijing University of Posts and
munications, Beijing 100876)
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Abstract: With the rapid growth of wireless data and the rapid increase of wireless terminals, our
work infrastructure and access policy gradually can’t meet the growing needs of users.
Due to the limitations of the work architecture, improvements on the existing
network infrastructure have been es less flexible. Because of its control and forwarding
separation, programmable, high innovative features, Software work is a work
architecture focused by researchers. After analyzing the problems in existing access policies and
the factors affecting the performance of WLAN, we propose a new WLAN access policy based on
SDN-WLAN architecture. By simulating paring this new strategy and the traditional
access policy, the MPD policy based on the average delay of probe respond frame, we verify