In this paper

we propose a fair scheduling algorithm called CoSB-WFS (Class of Service Based Wireless Fair Scheduling) to support QoS demands of different classes of services in wireless networks.It uses CoS index to distinguish different application level services and can use different queueing strategies for each CoS.We propose a compensation strategy and a reallocation method in the algorithm to achieve wireless fair services.We build a simple model of the algorithm in OPNET and present simulation results to show the performance improvements.