Grid based load balancing algorithm over heterogeneous wireless networks

The current soft load balancing algorithms in heterogeneous wireless networks do not have a universal wireless resource statistics,have not consider the matching difference between customers' business needs and the resource units.According to grid computing idea,a load balancing algorithm based on grid over heterogeneous wireless networks was put forward.The algorithm firstly maps the radio resources into different three-dimensional resources,which are equivalent to three-dimensional grids.The flow is divided into different subflows(i.e.data packets),and then distributed to different grids.In the condition of guaranteed QoS,networks load balancing can be achieved.Simulation results show that grid-based load balancing algorithm can achieve good load balancing among heterogeneous networks,reduce the load deviation,and improve system throughput.