System Design Of WLAN Mesh Network Testbed

With the rapid development of wireless local networks (WLAN), Wireless Mesh Network (WMN) technology has increasingly attracted people's attention and become the focus of research community. A variety of approaches have been applied to the study of wireless mesh network, including theoretical analysis, simulation, emulation, virtualization and real testbed.This paper firstly compares and summarizes the advantages and disadvantages of these approaches. Secondly, according to the study objectives, we propose to build a testbed to study the performance of WLAN mesh network, thus the parameters obtained reflect the runtime status best and its conclusions are of great applicability and accuracy.Therefore, this paper proposes the solution for the construction of a testbed. On the basis of the design goals, the overall framework is presented, whose logical structure consists of five parts, namely physical, network, runtime, testing and management environments, and functional framework of each part is given in detail. Then the realization scheme is described in network planning and layered structure of key technologies of the testbed.Finally, following the design and realization scheme, we have completed he construction of our testbed. The integrity and effectiveness of our testbed is verified through function testing and analysis.