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Energy-efficient boarder node medium access control protocol for wireless sensor networks.

Abdul Razaque1, Khaled M Elleithy2

  • 1Computer Science and Engineering Department, University of Bridgeport, Bridgeport, CT 06604, USA. arazaque@bridgeport.edu.

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Summary
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The new Boarder Node Medium Access Control (BN-MAC) protocol enhances wireless sensor networks by combining scheduled and contention-based methods for improved efficiency. BN-MAC offers better performance in energy consumption, latency, and throughput for various applications.

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Wireless Communication
  • Network Protocols

Background:

  • Wireless Sensor Networks (WSNs) require efficient Medium Access Control (MAC) protocols to manage network traffic, energy consumption, and node mobility.
  • Existing hybrid MAC protocols offer some improvements but often face challenges in balancing performance metrics like latency, throughput, and energy efficiency, especially in dynamic environments.
  • The need for a robust, scalable, and mobility-aware MAC protocol is critical for supporting diverse WSN applications.

Purpose of the Study:

  • To introduce and evaluate the Boarder Node Medium Access Control (BN-MAC), a novel hybrid MAC protocol for WSNs.
  • To demonstrate BN-MAC's ability to leverage characteristics of both scheduled and contention-based protocols for enhanced performance.
  • To analyze the effectiveness of BN-MAC in improving energy efficiency, reducing latency, and increasing throughput, particularly for region-wise WSNs.

Main Methods:

  • Design and implementation of the BN-MAC protocol, integrating scheduled and contention-based MAC features.
  • Incorporation of three key models: Automatic Active and Sleep (AAS), Intelligent Decision-Making (IDM), and Least-Distance Smart Neighboring Search (LDSNS).
  • Evaluation using Network Simulator-2 (ns-2), comparing BN-MAC against established hybrid MAC protocols (Z-MAC, A-MAC, Speck-MAC, ADC-SMAC, LPR-MAC).

Main Results:

  • BN-MAC demonstrated superior performance across key Quality of Service (QoS) parameters, including reduced energy consumption, lower latency, and higher throughput.
  • The protocol achieved better channel utilization, adaptability under heavy traffic and mobility, and reduced idle listening time compared to other protocols.
  • Simulation results confirmed BN-MAC's robustness and energy efficiency, outperforming comparative protocols in successful delivery rate and average duty cycle.

Conclusions:

  • BN-MAC is a highly effective hybrid MAC protocol for WSNs, offering significant improvements in performance and energy efficiency.
  • The integrated AAS, IDM, and LDSNS models contribute to reduced energy consumption, latency, and congestion, enhancing overall network reliability.
  • BN-MAC is well-suited for demanding WSN applications requiring congestion-free, mobility-supported, and reliable data delivery.