| Wireless mesh network, as a new type of network access technology, progresses rapidly in recent years, due to its flexibility and strong adaptability. At present, there are several approaches for studying wireless mesh network, among which is building real testbed according to actual application scenarios. Real testbed has the advantages of more precise results, more authentic and reliable conclusions, thus becoming one of the hot topics in wireless network research community.After the study of WLAN mesh technology, a scheme of WLAN mesh testbed for performance testing is presented, with emphasis on the design and implementation of the routing module. Therefore, firstly, the principles, architecture and related technologies of WLAN mesh network are introduced, Secondly, the overall framework of WLAN mesh testbed is given in logical structure and network architecture, and the description of its implementation scheme is also given in detail. Thirdly, on the basis of routing protocols study, the paper presents the design of routing module, followed by a detailed solution for its implementation. Finally, the testing, together with analysis and comparison of performance parameters of routing protocols, such as route discovery time, throughput, is illustrated by a suite of concrete experiments designed especially for the routing module of the testbed. |
