Abstract:

In order to improve the efficiency and reliability of the data transmission and satisfy the different QoS(Quality of Service) requirements. A kind of slot-scheduling mechanism  is introduced which is based on prediction and priority in IEEE 80216 Mesh mode: According to different priority of different service, slots are reserved for high priority service to meet different QoS; at the same time it predict the data quantity coming between the time SS sending messages and the time BS granting messages, so that it can improve the scheduling mechanism, and improve the characteristic of delay.

Key words: WiMAX forecast, priority, slot-scheduling, network simulator NS2