Ahmad JAMSHIDNIA, Mohammad SHİRİ, Ramin SAYADİ

Prepare optimum solutions for increase WLAN efficiency, utilizing CR technology

Abstract. In wireless local area network each access point has a bandwidth or unity for using its nodes and relay nodes, which WLAN doesn’t use private bandwidth completely at the same time. In this study we prepare optimum methods for increasing efficiency of using wireless local area network, those nodes that are in the WLAN range, similar AP, have the ability to share its bandwidth for several nodes. Rs nodes, in addition exploring smart spectrum, they use bandwidths which are in range of whole network at opportunistic way till the first user is inter. we use MATLAB to simulation the offered solution. For upgrading simulation quality of simple network that simulating, the network has latest technology. The results of simulation prepare solution in current research have 57.30% impact at improving network performance in reducing call dropping rate.

Keywords:

Wireless local area network cognitive radio, relay, bandwidth,

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