ATA: adaptive transmission algorithms for prolonging lifetime in underwater sensor networks

Authors:
Zhongwen Guo;Jinfeng Dou;Wei Han;Guangxu Zhang;Zhengang Ha
Affiliations:
Ocean University of China, Qingdao, China;Ocean University of China, Qingdao, China;Ocean University of China, Qingdao, China;Ocean University of China, Qingdao, China;Ocean University of China, Qingdao, China
Venue:
Proceedings of the 1st ACM international workshop on Foundations of wireless ad hoc and sensor networking and computing
Year:
2008

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Abstract

The severe energy constraints of sensors and the unique characteristics of underwater sensor networks (UWSNs) present major challenges for the long-term monitoring applications. This paper proposes two novel adaptive transmission algorithms for UWSNs to prolong lifetime. When a message becomes available for propagation at a node, the node will propagate data by multi-hop or one-hop to the master node according to the hybrid of its residual energy and a threshold. The threshold is predetermined by the master node and is not changed midway. This study applies the approaches to star topology for various combinations of internode distance, frequency and the number of nodes in a prototype hallow UWSNs. Simulation experiments show that the schemes can prolong the lifetime comparing with the existing schemes of UWSNs.