An Adaptive MAC (A-MAC) Protocol Guaranteeing Network Lifetime for Wireless Sensor Networks

摘要: Wireless sensor networks (WSNs) have a wide range of potential applications, majority which may be required to survive for pre-configured lifetime since it is hard or costly re-deploy nodes where sensing hole has taken place. A occur when specific suffer more traffic load than others and thus exhaust initially supplied energy. We propose an adaptive MAC (A-MAC) protocol WSNs tackle the problem, keeps entire network operating lifetime. The main concern in designing A-MAC two-folded: guaranteeing lifetime, reducing end-to-end latency. In order achieve both goals, introduces duty cycle depending on ratio remaining energy considering node has, frequently will wake up hence fasten relaying data. As consequence, each expected run out around end Also, with are utilized reduce delay. Simulation results exhibit significantly lower latency while