The strategy of relay selection based on DF by cross-layer
Jinsha Yuan · Journal of North China Electric Power University · 2010
The performance of system was improved by the application of the cooperative communications in wireless network.Consider the thought of cross-layer and collaborate MAC layer and physical layer,a program of relay selection by cross-layer based on Decode and Forward model was proposed.The problem of when to cooperative was solved and the method of how to choose a relay and how to allocate the transmission power for the goal of minimizing the outage probability was given.At the same time,the frame and the concrete steps of relay selection by cross-layer were given too.The program can select the relay effectively by the latest channel state information,because it based on cross-layer thought.Moreover,it owns the specific distribution of transmission power,so can use the transmission power more efficiently.The simulation results show that the program can achieve a better performance of outage probability.