A Distributed Dynamic Channel Allocation Algorithm of Solving Self-interference in WLAN/WPANs

摘要

This paper presents a distributed dynamic channel allocation algorithm (DDCAA) that can improve per-user throughput significantly in dense WLAN/WPANs, solving self-interference problems which are caused by the deficiency of communication channels, particularly for nonuniform traffic conditions. Computer simulations show that given any traffic load distribution and any initial channel allocation, the algorithm converges to an equilibrium state in a short time,in which the overall throughput of the network is significantly improved. The proposed algorithm can change its threshold self-adaptively and has significant practical value due to its simplicity and effectiveness.