Journal article
Toward Improved Energy Fairness in CSMA-Based LoRaWAN
IEEE/ACM transactions on networking, pp 1-16
28 Jun 2024
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
This paper proposes a heterogeneous carrier-sense multiple access (CSMA) protocol named LoHEC as the first research attempt to improve energy fairness when applying CSMA to long-range wide area network (LoRaWAN). LoHEC is enabled by Channel Activity Detection (CAD), a recently introduced carrier-sensing technique to detect LoRaWAN signals even below the noise floor. The design of LoHEC is inspired by the fact that existing CAD-based CSMA proposals are in a homogeneous manner. In other words, they require LoRaWAN end devices to perform identical CAD regardless of the differences of their used network parameter - spreading factor (SF). This causes energy consumption imbalance among end devices since the consumed energy during CAD is significantly affected by SF. By considering the heterogeneity of LoRaWAN in terms of SF, LoHEC requires end devices to perform different numbers of CAD operations with different CAD intervals during channel access. Particularly, the number of needed CADs and CAD interval are determined based on the CAD energy consumption under different SFs. We conduct extensive experiments regarding LoHEC with a practical LoRaWAN testbed including 60 commercial off-the-shelf end devices. Experimental results show that in comparison with the existing solutions, LoHEC can achieve up to 0.85 \times improvement of the energy fairness on average.
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Details
- Title
- Toward Improved Energy Fairness in CSMA-Based LoRaWAN
- Creators
- Chenglong Shao - Kyushu Institute of TechnologyOsamu Muta - Kyushu UniversityKazuya Tsukamoto - Kyushu Institute of TechnologyWonjun Lee - Korea UniversityXianpeng Wang - Hainan UniversityMalvin Nkomo - Drexel UniversityKapil R. Dandekar - Drexel University
- Publication Details
- IEEE/ACM transactions on networking, pp 1-16
- Publisher
- IEEE
- Grant note
- Telecommunications Advancement Foundation (10.13039/501100009427) RS-2024-00338786 / Korea Government (MSIT) 24K20765 / JSPS KAKENHI
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:001258758300001
- Scopus ID
- 2-s2.0-85197036377
- Other Identifier
- 991021891415504721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Computer Science, Hardware & Architecture
- Computer Science, Theory & Methods
- Engineering, Electrical & Electronic
- Telecommunications