DCO-MAC: A Hybrid MAC Protocol for Data Collection in Underwater Acoustic Sensor Networks
Min Deng1, Huifang Chen2,3, Lei Xie4,5
1College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China. dengminzju@zju.edu.cn.
Sensors (Basel, Switzerland)
|July 18, 2018
Summary
A new Data Collection-Oriented Medium Access Control (DCO-MAC) protocol improves underwater acoustic sensor network (UASN) performance. DCO-MAC efficiently manages varying traffic loads for better throughput and lower delay.
Area of Science:
- Computer Science
- Electrical Engineering
- Oceanography
Background:
- Underwater acoustic sensor networks (UASNs) face significant challenges in medium access control (MAC) due to limited bandwidth, long delays, high error rates, and sparse topologies.
- Non-uniform traffic distribution in data collection applications necessitates specialized MAC protocols for UASNs.
Purpose of the Study:
- To propose a novel MAC protocol, DCO-MAC, specifically designed for data-collection-oriented UASNs.
- To address the challenges of varying traffic loads and support mobile nodes within UASNs.
Main Methods:
- Partitioning the UASN into sub-networks based on traffic load (light vs. heavy).
- Employing a contention-based MAC protocol for light traffic sub-networks.
- Utilizing a reservation-based MAC protocol for heavy traffic sub-networks.
- Incorporating support for mobile node access.
Main Results:
- Theoretical analysis and simulations demonstrate superior performance of DCO-MAC.
- Improvements observed in network throughput, end-to-end packet delay, energy efficiency, and fairness.
- DCO-MAC outperforms existing MAC protocols in data-collection-oriented UASNs.
Conclusions:
- The proposed DCO-MAC protocol effectively enhances performance in data-collection-oriented UASNs.
- DCO-MAC offers a robust solution for managing diverse traffic conditions and supporting mobility.
- This protocol represents a significant advancement for underwater network communication.
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