Abstract: Established WMNs work in single-radio single-channel (SR-SC) design in which single network interface card (NIC) is setup in every router and one basic radio channel is shared by every mesh router. In this engineering, system continues from low limit and throughput because of successive back offs and collision impacts, consequently Single-Radio Multi-Channels (SR-MC) had been intended to upgrade the WMNs execution. In SR-MC design each cross section switch needs to switch between channels progressively with shifting activity load in the system, while incorporating with connecting network hubs to guarantee trade of data for some timeframe through a typical channel yet such coordination can be accomplished by tight time synchronism among mesh nodes, however in a multi-hop WMNs it is hard to accomplish such synchronization among hubs. A satisfactory answer for decrease the high inactivity and at the same time upgrade throughput and diminish end-to-end delay of WMNs is to utilize Multi-Radio Multi-Channel (MR-MC) engineering. In MR-MC WMNs design, various interchanges can happen in the meantime, and diverse channels doled out to connecting connections can convey information packets without impedance. In the wake of authorizing SR-MC WMNs and MR-MC WMNs in Qualnet test system, results are assessed in view of parameters such as throughput and end-to-end delay. Results demonstrate the critical distinction between these two situations. MR-MC WMN gives the better result as contrast with the SR-MC WMN. MR-MC WMN is considerably more suitable for the calamity administration in the broadband web application. But in present eon scalability is also a major factor for the optimization of the network so in this paper effect of scalability on SR-MC and MR-MC wireless mesh networks is optimized.

Keywords: WMN (Wireless Mesh Network), SR-SC (Single radio-Single Channel), SR-MC (Single radio-Multi Channel), MR-MC (Multi radio-Multi Channel).