Optimal operation mode selection for energy-efficient light-weight multi-hop time synchronization in linear wireless sensor networks

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Atıf İçin Kopyala

Al Imran M. A., Dalveren Y., Tavli B., Kara A.

EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, cilt.2020, sa.1, 2020 (SCI-Expanded)

• Yayın Türü: Makale / Tam Makale
• Cilt numarası: 2020 Sayı: 1
• Basım Tarihi: 2020
• Doi Numarası: 10.1186/s13638-020-01744-y
• Dergi Adı: EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING
• Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, Computer & Applied Sciences, Metadex, zbMATH, Directory of Open Access Journals, Civil Engineering Abstracts
• Anahtar Kelimeler: Wireless sensor networks (WSNs), Synchronization window, Energy efficiency, CLOCK SYNCHRONIZATION, PROTOCOLS
• Gazi Üniversitesi Adresli: Hayır

Özet

We explored the joint effect of synchronization window and offset/drift mode selection on the time synchronization of linear wireless sensor networks (LWSNs). Recent advances in the field along with the availability of capable hardware led to adoption of LWSNs in diverse areas like monitoring of roads, pipelines, and tunnels. The linear topology applications are susceptible to single point of failure; therefore, energy efficient operation of LWSNs is even more important than the traditional WSNs. To address the challenge, we investigate the time synchronization mode selection for the optimum operation of a multi-hop and low-overhead LWSN. We investigate two modes of synchronization: synchronization by using only offset and synchronization by using offset in addition to the clock drift. Furthermore, we investigate the effects of synchronization window size. Our experimental results reveal that computation of offset alone for smaller window sizes and resynchronization periods is sufficient in achieving acceptable degree of synchronization.