An Energy Aware GAF protocol for Distributed Wireless Sensor Networks

In the design of protocols and algorithms energy awareness for computation and protocol management is becoming a crucial factor. On the other hand, to support node mobility many scalable routing strategies have been designed. These protocols try to consider the path duration with respect to some QoS constraints and to reduce the route discovery procedures. In this paper, a novel routing strategy is introduced called Energy Aware Geographic Adaptive Fidelity protocol, which uses nodes’ location information, ins tead of links’ information for routing of data packets. This protocol makes use of nodes which are not active into sleeping state over a period of time making cooperative network more energy efficient. When compared to a similar non-energy aware routing protocol such as GPSR, energy aware GAF not only reduces the energy consumption for the route setup, but also performs better than GPSR in terms of packet delivery ratio. This novel protocol minimizes the unnecessary channel access contention and thereby improves the packet drop rate without compromising the event detection latency. This is in contrast to the energylatency tradeoffs that has been the main focus of many energy efficient in Wireless Sensor Networks (WSN).