A Diagonal-based TTDD in Wireless Sensor Networks

Due to the constrained energy of nodes in wireless sensor networks, how to reduce energy consumption of nodes and maintain the lifetime of network become the important target of routing algorithms. An advance two-tier data dissemination model (A-TTDD) was proposed in this paper. This algorithm adopted the diagonal structures, and queried the dissemination node between two parallels that were in the center of a line connecting source node to dissemination node nearest the sink node, so energy consumption was reduced. Finally, the performances of the A-TTDD algorithm such as querying path, energy consumption and the lifetime of network were simulated. The results show that A-TTDD algorithm has lower energy consumptions and longer lifetime than these of the original TTDD. Otherwise, the scalability of the A-TTDD algorithm is good