Enhancing the Reliability of Head Nodes in Underwater Sensor Networks

Sensors

Hong Min¹  Yookun Cho¹ 

[1] School of Computer Science and Engineering, Seoul National University, Seoul 151-742, Korea; E-Mails:

关键词: underwater sensor networks;    clustering;    checkpointing;   

DOI  :  10.3390/s120201194

来源: mdpi

【 摘 要 】

Underwater environments are quite different from terrestrial environments in terms of the communication media and operating conditions associated with those environments. In underwater sensor networks, the probability of node failure is high because sensor nodes are deployed in harsher environments than ground-based networks. The sensor nodes are surrounded by salt water and moved around by waves and currents. Many studies have focused on underwater communication environments in an effort to improve the data transmission throughput. In this paper, we present a checkpointing scheme for the head nodes to quickly recover from a head node failure. Experimental results show that the proposed scheme enhances the reliability of the networks and makes them more efficient in terms of energy consumption and the recovery latency compared to the previous scheme without checkpointing.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland