Abstract: The present innovation relates to a method for a placement of Internet Gateway (IGW) in a Backbone Wireless Mesh Networks (BWMNs) comprising: selecting the proper IGW (100); calculating the largest path the one degree nodes can reach with delay constraint (200); assigning Web Mesh Routers (WMRs) nodes to the identified IGW (300); forming a cluster with the largest degree node is the identified IGW (400); recalculating the position of IGW for intra-load balancing (500); assigning the node that has the maximum load radio to be the new IGW of the cluster (600); updating the rest of BWMN nodes (700); and forming the next clusters until no more WMR left (800). The present invention provides IGWs placement in the design phase while satisfying load balancing among IGWs and WMRs and under QoS constraints. The balancing acts encompass balancing over the load among IGWs of the entire BWMN and balancing over the load among WMRs of the entire BWMN.