Gateway Placement in Mesh Network using Traffic Offloading through 2G/3G Networks

Wireless mesh network is a new network paradigm to provide seamless internet services. In this network, users interact with access points also called router are placed at various points in cities and user can access the internet by connecting to these access points. Access points in turn connect via multi hop to internet gateway. Internet gateway provides internet services. Wireless Mesh network suffers from congestion problems with increasing user base. Many solutions have been examined previously like increasing the gateways, optimum location of gateways, etc., but all these still solutions have a constraint on maximum scalability and many times traffic load is maximum only at a certain period of time and later load is less, so scaling is not a profitable solution in this case as the access point is not loaded to capacity most of time and cost spent on it is not fruitful. Considering this problem, we have proposed a hybrid mesh network solution integrating 2G/3G network into mesh network [1] to handle the load on a mesh network. But the location of the gateway is fixed in this approach, based on the traffic offloading pattern, if the gateway can be moved, we can still achieve some more QOS. In this paper, we explore this idea and propose a solution for effective placement of gateway for the offloaded mesh network