the WIFI and WSN share the same spectrum band causing severe degradation to WSN network performance. The WSN applications in BAN and security cannot afford such degradation, in this paper we have develop an interference coordination scheme which uses no data packets in downlink to remove interference thus creating interference free tunnel for WSN nodes in infrastructure mode. In our scheme we have created a dedicated slot for WSN by blocking Wi-Fi Network using NAV vector in uplink access by the Wi-Fi terminals. This paper also includes the 2D-model of the queue derived from generic MM1K with the buffer limitation and have calculated the Wi-Fi blocking probability in various scenarios, which later on verified by simulation. Later we will verify our work by simulation results in C++ and comparing the result with the traditional white space scheme.
