Adaptive protocols for information dissemination in wireless sensor networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Directed diffusion: a scalable and robust communication paradigm for sensor networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
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We propose an energy-efficient routing mechanism for maintaining uniform distribution of each sensor's energy through shorter paths. We define two metrics – energy level and vector information. The energy level describes how much the energy of the sensor remains and the vector information explains whether the direction towards the sink. Using the two factors, we choose leaders with higher energy level and the vector information when any sensor node tries to send the sink some messages. Whenever the sensor node delivers each one message to the sink, the selected leader node may be different dynamically through our defined two metrics. So we expect that the energy level of every sensor node can be maintained uniformly over the entire sensor network. Therefore, sudden sensor failure caused by battery exhaust and network partition caused by some sensor's sudden deaths can be prevented. We analyze our DyMC through evaluating and comparing with existing research such as directed diffusion.