QoS Guaranteed Multi-business Schedule Algorithm in Wireless Regional Area Network

This paper studies the multi-traffic resource allocation and schedule strategy in Wireless Regional Access Network(WRAN).Based on the features of Cognitive Radio(CR),an improved multi-traffic schedule algorithm is proposed.Through calculating the priority of different traffic Quality of Service(QoS) requirements in single user,at the same time,considering the schedule fairness between multi-users,the proposed algorithm selects the optimal channel of traffic schedule for users and dynamic adjusts the QoS priority by use of outage management in transmissions.Simulation results show that the algorithm can guarantee multi-traffic QoS requirements for single users and fairness between multi-users,while utilizing the bandwidth effectively.