Abstract:

To enhance the capacity of multi radio multi channel Ad Hoc networks and decrease radio interference, an iterative algorithm is put forward to solve the two stage sub problem in designing the model which translates channel assignment and power allocation into the mixed integer nonlinear optimization from the view of cross layer design. At the first stage a heuristic algorithm is applied to assign channel while a distributed algorithm is applied to allocate power at the second stage. Simulation results indicate that compared with the classic fixed channel power allocation algorithm, the new algorithm can improve the network utility whereas decrease the radio interference significantly.