Relay Selection and Sensor Clustering in Underwater Wireless Sensor Networks to maintain the Maximum Delay Requirement
Author(s):
Article Type:
Research/Original Article (بدون رتبه معتبر)
Abstract:
The Underwater Wireless Sensor Network (UWSN) is one of the promissing technologies that can be used to monitor depths of seas and oceans, and exploit existing underwater resources in various fields. One of the main parameters to evaluate the efficiency of this technology is its message-passing delay, in the sense that for the information collected from the environment by sensors, it is necessary to reach the control center in a very short time. In this paper, a clustering approach is used to design an overlay network of relays supposing that the relays are connected to the control center through direct low-latency links. Using this approach, the environment is divided into the clusters, and to the sensors in each cluster, a relay is assigned in such a way that the delay between the sensors and the assigned relay is less than the maximum acceptable delay threshold. First, a linear problem is formulated that returns the location and number of relay nodes based on the neighboring graph. Due to the high complexity of this problem, also a relaxed method is presented in which the neighborhood graph is first processed according to the maximum acceptable delay and then by solving a much simpler problem, the number and locations are found. The simulations show that the proposed relaxed method produces optimal results in an acceptable time.
Keywords:
Language:
Persian
Published:
Journal of Marine Electrical Engineering, Volume:1 Issue: 1, 2022
Pages:
14 to 22
https://www.magiran.com/p2484411
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