Abstract:
Energy conversation is one of the primary objective of duty cycle MAC protocols. A
number of synchronous and asynchronous duty cycle MAC protocols are proposed in the
recent years. Especially recently proposed Asynchronous duty cycle MAC protocols are
highly energy efficient, however they suffer significant packet delivery latency on wireless
links given dynamic traffic loads in diverse networks.In our thesis, we present an
asynchronous hybrid protocol called Hybrid MAC (H-MAC), which uses both sender and
receiver initiated mechanisms to combat the packet delivery latency .In H-MAC each node
schedules its sleep and wake up time based on cross layer routing information in receiver
initiated part. In sender initiated part each sender chooses its wake up time based on the
receiver’s wake up information. We have evaluated H-MAC in diverse networks and heavy
traffic loads, experiment reveal that, H-MAC significantly reduces packet delivery latency
and energy consumption compared to RI-MAC. Furthermore H-MAC increases number of
packet delivered in less time.
