Modeling and Analysis of Co-Channel Interference for IEEE 802.11 Wireless Local Area Network

With emerging network technologies, internet is used to provide backbone support for communication with each other. In this highly dynamic wireless environment Co-channel interference (CCI) create a constraint in terms of congestion. To maintain quality of service (QoS) in IEEE 802.11, WLAN performance analysis of CCI is necessary. In this paper, we present an analytical model for performance evaluations of the CCI effect in multi access point (AP) WLAN. The AP regions are overlapped to produce CCI effect which forces the network for retransmission of lost data results in congestion in the network. Various performance measures of the proposed scheme such as response time, queue length, probability of loss etc with respect to CCI factor is determined. Computational aspects of the proposed model in terms of graphs are presented.