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@INPROCEEDINGS{Guru_etal-2007,
     author = {Guru, Siddeswara Mayura and Steinbrecher, Matthias and Halgamuge, Saman K. and Kruse, Rudolf},
     editor = {C{\'{e}}rin, Christophe and Li, Kuan-Ching},
      month = may,
      title = {{Multiple Cluster Merging and Multihop Transmission in Wireless Sensor Networks}},
  booktitle = {Advances in Grid and Pervasive Computing, Second International Conference, GPC 2007, Paris, France, May 2-4, 2007, Proceedings},
     series = {Lecture Notes in Computer Science},
     volume = {4459},
       year = {2007},
  publisher = {Springer Verlag},
       issn = {0302-9743},
       isbn = {978-3-540-72359-2},
        doi = {10.1007/978-3-540-72360-8_8},
   abstract = {Wireless sensor networks consist of sensor nodes that are deployed in a large area and collect information from a sensor field. Since the nodes have very limited energy resources, the energy consuming operations such as data collection, transmission and reception must be kept to a minimum. Low Energy Adaptive Clustering Hierarchy (LEACH) is a cluster based communication protocol where cluster-heads (CH) are used to collect data from the cluster nodes and transmit it to the remote base station. In this paper we propose two extensions to LEACH. Firstly, nodes are evenly distributed during the cluster formation process, this is accomplished by merging multiple overlapping clusters. Secondly, instead of each CH directly transmitting data to remote base station, it will do so via a CH closer to the base station. This reduces transmission energy of cluster heads. The combination of above extensions increases the data gathering at base station to 60\% for the same amount of sensor nodes energy used in LEACH.}
}