Abstract: Multi radio wireless network is one of the trends for future wireless network, which has the characteristics of multiple interfaces,multiple channels and multiple hop. The channels and links resource optimization in such network is a joint optimization problem of routing, channel allocation and link scheduling. In the existed related approaches, the network traffic is simply assumed to be deterministic and stable. However,it is known that there is always some uncertainty in real network traffic. In this paper, one joint optimization model for network throughput maximization was proposed under the constraints of transmission flows, channels and interferences. With the optimal solution with uncertain input traffic,one link schedule scheme was also proposed. Numeric simulation results show that our solution has better performance for uncertain traffic demand.

Key words: Multi-radio multi-channel, Routing, Channel assignment, Link scheduling, Optimization