Abstract
In this paper, we propose an underwater code division multiple access system where each sensor node independently evaluates whether a channel is available or not without control message exchanges with a central data-gathering node named a sink. A sensor node is able to estimate how large power is currently received at a sink in the distance based on the overheard power at the node from neighbors. If the estimated power is below a certain threshold level, the sensor node is allowed to transmit data in a p-persistent manner, where the probability p depends on the available capacity. Simulation results show the traffic estimation works well as demonstrated by a success probability of approximately 100%, and the data throughput improves in most of the offered traffic region because of the removal of the control signaling related to channel allocation.
Subject
Electrical and Electronic Engineering,Computer Networks and Communications,Hardware and Architecture,Signal Processing,Control and Systems Engineering
Reference25 articles.
1. Underwater acoustic sensor networks: research challenges
2. An Introduction to Underwater Acoustics: Principles and Application;Xavier,2010
3. Underwater acoustic communication channels: Propagation models and statistical characterization
4. Challenges: Building scalable mobile underwater wireless sensor networks for aquatic applications;Cui;IEEE Netw. Spec. Issue Wirel. Sens. Netw.,2006
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