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
Energy-Efficient Communication Protocol for Wireless Microsensor Networks
HICSS '00 Proceedings of the 33rd Hawaii International Conference on System Sciences-Volume 8 - Volume 8
Distributed Clustering for Ad Hoc Networks
ISPAN '99 Proceedings of the 1999 International Symposium on Parallel Architectures, Algorithms and Networks
HEED: A Hybrid, Energy-Efficient, Distributed Clustering Approach for Ad Hoc Sensor Networks
IEEE Transactions on Mobile Computing
IEEE Transactions on Parallel and Distributed Systems
An application-specific protocol architecture for wireless microsensor networks
IEEE Transactions on Wireless Communications
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Energy efficiency is a key problem of Wireless Sensor Networks. Though we already have many self-organization protocols which can build energy-saving structures, the energy cost of maintenance also must be concerned. We found that organized network structure has great impact on the energy cost in the maintenance stage and the overall energy efficiency. In this paper, we classify the self-organization proposals according to the organized structures and demonstrate how the different structures will affect the energy cost used to maintain the structures when both initialization and maintenance stages are counted. Finally we concluded that a non-loop-free structure is easier to maintain and then has better energy efficiency than global tree structure.