Research on Sleep Mode in WANDAS

摘要

This paper investigates sleep mode of MS (Mobile Subscriber) at Power Saving Class I sleep mode based on WANDAS (Wireless Access Network for Distribution Automation System). Sleep mode is a key feature introduced in WiMAX standard, which ensures minimize the MS power consumption and decrease the occupation of interface resources in serving BS (Base Station). Firstly, we propose a sleep mode control algorithm based on WANDAS, which adjusts adaptively according to the traffic rate, and based on variable sleep interval energy improved mechanism. Then we compare the proposed algorithm with the standard algorithm under four actual models which we given in this paper. Furthermore, the simulation results of the proposed algorithm show that the performance of the proposed algorithm is better than the standard algorithm in energy saving.