Synchronized ESP-NOW for Improved Energy Efficiency

Yermakhan Magzym, Aida Eduard, Dnislam Urazayev, Xenofon Fafoutis, Dimitrios Zorbas

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Abstract

ESP-NOW is a peer-to-peer wireless communication protocol developed by Espressif Systems for low-power and low-cost in-situ Internet of Things devices. ESP-NOW supports bidirectional communication between multiple transmitters (masters) and multiple end-devices (slaves). It also supports both unicast and broadcast transmissions. This paper proposes asynchronized method, called Sync-ESP-NOW, to improve the energy efficiency of the end-devices by scheduling broadcast transmissions in predefined time intervals. The proposed method creates a synchronized application layer which allows the end devices to be in on mode only when a master’s transmission is performed, while they remain in sleep mode to conserve energy for the rest of the time. However, due to the periodic wake-up of the end-devices, a compromise in terms of delay exists. We evaluate the proposed approach through a series of experiments and demonstrate significant improvements in terms of energy efficiency at the end-devices without compromising the packet reception ratio. The proposed approach achieves an up to 96% lower energy consumption considering various packet rate scenarios.
Original languageEnglish
Title of host publicationProceedings of the 11th IEEE International Black Sea Conference on Communications and Networking
PublisherIEEE
Publication date2023
Pages57-62
ISBN (Print)979-8-3503-3783-9
ISBN (Electronic)979-8-3503-3782-2
DOIs
Publication statusPublished - 2023
Event11th IEEE International Black Sea Conference on Communications and Networking - Istanbul, Turkey
Duration: 4 Jul 20237 Jul 2023
Conference number: 11

Conference

Conference11th IEEE International Black Sea Conference on Communications and Networking
Number11
Country/TerritoryTurkey
CityIstanbul
Period04/07/202307/07/2023

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