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JMAC Protocol: A Cross-Layer Multi-Hop Protocol for LoRa.

Juan José López Escobar1, Felipe Gil-Castiñeira1, Rebeca P Díaz Redondo1

  • 1AttlanTTIC Research Center, University of Vigo, 36310 Vigo, Spain.

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Summary
This summary is machine-generated.

This study introduces JMAC, a novel multi-hop protocol enhancing Internet of Things (IoT) connectivity. JMAC leverages LoRa and mesh networking to improve coverage and support more devices in challenging environments.

Keywords:
IoTLoRaOMNeT++mesh networkmulti-hopsmart city

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Area of Science:

  • Computer Science
  • Electrical Engineering
  • Wireless Communication

Background:

  • Low-Power Wide-Area Networks (LPWAN) enable large-scale Internet of Things (IoT) deployments.
  • Connectivity challenges persist in non-line-of-sight indoor environments and areas with poor coverage.
  • Existing technologies like LoRa and Sigfox have device limits that may be insufficient for dense deployments.

Purpose of the Study:

  • To introduce JMAC, a new multi-hop protocol designed to enhance long-range wireless communication networks.
  • To improve coverage and increase the number of supported devices per cell in IoT applications.
  • To enable reliable monitoring in scenarios like smart cities and Industry 4.0.

Main Methods:

  • JMAC protocol utilizes LoRa radio technology for low power consumption and extended coverage.
  • The protocol exploits mesh networking behavior to boost network robustness and capacity.
  • Predictive wake-up mechanisms are incorporated to ensure long operational lifetimes for sensor devices.
  • Performance was evaluated using the OMNeT++ network simulator under various conditions.

Main Results:

  • The JMAC protocol demonstrated promising results in simulations.
  • The multi-hop approach effectively improved network coverage.
  • Increased device capacity per cell was observed, addressing scalability limitations.
  • The combination of LoRa and mesh networking proved effective for challenging IoT scenarios.

Conclusions:

  • JMAC offers a viable solution for enhancing LPWAN connectivity in difficult environments.
  • The protocol effectively addresses limitations in coverage and device density for IoT applications.
  • JMAC's predictive wake-up strategy contributes to energy efficiency and extended device lifespan.