Abstract
In Order to fulfill the energy consumption reduction in IEEE 802.15.4 sensor networks, it proposes an energy efficient implementation by managing the mobility in the networks using speculative algorithm in cluster tree topology. This system aims at anticipating the loss of the association between coordinators and mobile nodes. To adapt the mobility between the nodes, it proposes a hierarchical addressing algorithm in which hierarchical address is assigned to each node of the network. Speculative algorithm is used to choose the next coordinator of association. The impact of MAC parameters on packet delivery ratio and the effectiveness of ADAPT algorithm is analyzed for a ZigBee sensor networks. A comparative study of ZigBee network with and without ADAPT algorithm. As a measure the signature verification of each node is done as that the packet transfer can be made secure. From this method it minimizes the energy of the system efficient.
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