Abstract:

To solve the shortcomings that the Rule-based Channel allocation algorithm does not fit the practical application, we propose an algorithm considering the channel capacity and assigns the channel which has the maximum throughput to the node. The simulation results show that the proposed algorithm has greatly enhanced
throughput and fairness, and the complexity does not increase a lot. When the interference distance of 100 m and the number of cognitive nodes is 80, the proposed algorithm has 133% increase in throughput and 96% in fairness. The proposed algorithm can meet the actual needs better.

Key words: cognitive wireless networks, channel allocation, channel capacity