Integrated Scheduling Using Rendezvous Window and Sniff Mode for Wireless Personal Area Networks

Radio resource (bandwidth) and power are limited in wireless personal networks. So these scarce resources are to be used efficiently from the system’s perspective while they should be allocated fairly or differently depending or users’ requirements or traffic characteristics from individual user’s perspective. We propose an integrated and efficient piconet and scatternet scheduling mechanism. In our mechanism, the scheduling of scatternet and piconet is performed by appropriately selecting rendezvous window or sniff parameters according to either QoS requirements or dynamic traffic characteristics. We have shown via analysis and simulations that ours can achieve differentiated and efficient bandwidth allocation both in a scatternet level and in a piconet level as well as power saving, which is desired for wireless personal area network systems.