A Sniff Scheduling Policy MISIP for Power Saving in Bluetooth Piconet
Yang Xiao-zong, Hit Shouchuang · Journal of Astronautics · 2005
After deeply analyzing sniff mode which is a low power operation mode of bluetooth, a learning function is proposed to approximate the distribution of the incoming traffic at a master-|slave pair. Based on the inter-|arrival time of data packets obtained from the learning function, the mean of these inter-|arrival time is the possible sniff interval; according to the backlog packets in the buffer space and forecast next burst data traffic, a cost model is used to approximate the slot occupancy assigned to a slave. Consequently, calculate sniff attempt slots, and go into sniff mode if conditions are satisfied. Finally, computer simulation results validate that the proposed scheduling policy MISIP(Mean Inter-|arrival based Sniff Interval Policy) can save about 38.6% power consumption compared to the always active mode.