摘要：Since traditional soft load balancing algorithm in the heterogeneous wireless networks exists the problem of high load deviation and low system throughput, this paper proposes grid-based load-balancing algorithm to improve the integration of heterogeneous wireless throughput and reduce business delay and load deviation, while ensuring network quality of service basis. The algorithm proposed in this paper maps the wireless resource into different three-dimensional resource unit under the condition of full consideration of customers' business needs and difference matching of heterogeneous resources unit, and then divides the business into different sub-business traffic which is distributed to different network grid to achieve business distributed shunt. This gives specific process of load balancing algorithm. Finally, we perform the simulation experiments with MLB and DLBD algorithm on the aspects of shunt times, business blocking probability and network load balancing degree. Experiments show that: the algorithm proposed in this paper improves the utilization of the heterogeneous wireless resource, and improves performance of system.
关键词：Unit Allocation;Load;Scheduling Algorithm;Business Blocking Probability
