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Fast Synchronization Scheme Using 2-Way Parallel Rendezvous in IEEE 802.15.4 TSCH.

Byeong-Hwan Bae¹, Sang-Hwa Chung¹

¹Department of Electrical, Electronics, and Computer Engineering, Pusan National University, Busan 46241, Korea.

Sensors (Basel, Switzerland)

|March 4, 2020

Summary

Distributed Radio Listening-Time Slotted Channel Hopping (DRL-TSCH) improves industrial network synchronization. This technique reduces synchronization time by 67% and energy use by 58% through efficient channel information sharing.

Keywords:

IEEE 802.15.4 fast synchronization parallel rendezvous time-slotted channel hopping (TSCH)

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Area of Science:

Computer Science
Electrical Engineering
Wireless Communication

Background:

Industrial environments demand high robustness and reliability in wireless networks.
Time-Slotted Channel Hopping (TSCH) Medium Access Control (MAC), specified by IEEE 802.15.4, is a key technology for achieving this.
Existing TSCH networks utilize parallel rendezvous techniques for pre-synchronization channel information exchange.

Purpose of the Study:

To propose a novel Distributed Radio Listening-Time Slotted Channel Hopping (DRL-TSCH) technique.
To enhance network synchronization speed and reduce energy consumption in TSCH networks.
To evaluate the performance of DRL-TSCH in industrial wireless communication scenarios.

Main Methods:

Implementation of a two-way transmission strategy based on parallel rendezvous.
Sharing channel information between nodes prior to network synchronization.
Performance evaluation using the OpenWSN stack and OpenMote-cc2538 hardware modules.
Measurement of synchronization time, rendezvous packets transmitted, and energy consumption in linear and mesh topologies.

Main Results:

DRL-TSCH achieved a maximum average reduction in synchronization time of 67%.
Energy consumption was reduced by an average of 58% compared to other techniques.
The technique demonstrated effectiveness in both linear and mesh network topologies.

Conclusions:

DRL-TSCH significantly accelerates network synchronization in industrial wireless networks.
The proposed technique offers substantial energy savings, crucial for battery-powered devices.
DRL-TSCH provides a robust and efficient solution for enhancing TSCH network performance.