Enhanced Message-Passing Based LEACH Protocol for Wireless Sensor Networks
- Authors
- Kang, Jaeyoung; Sohn, Illsoo; Lee, Sang Hyun
- Issue Date
- 1-1월-2019
- Publisher
- MDPI
- Keywords
- LEACH; message passing; nonlinear power consumption
- Citation
- SENSORS, v.19, no.1
- Indexed
- SCIE
SCOPUS
- Journal Title
- SENSORS
- Volume
- 19
- Number
- 1
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/68370
- DOI
- 10.3390/s19010075
- ISSN
- 1424-8220
- Abstract
- This paper proposes a distributed energy-efficient clustering protocol for wireless sensor networks (WSNs). Based on low-energy adaptive clustering hierarchy (LEACH) protocol, the proposed LEACH-eXtended Message-Passing (LEACH-XMP) substantially improves a cluster formation algorithm, which is critical for WSN operations. Unlike the previous approaches, a realistic non-linear energy consumption model is considered, which renders the clustering optimization highly nonlinear and challenging. To this end, a state-of-the-art message-passing approach is introduced to develop an efficient distributed algorithm. The main benefits of the proposed technique are its inherent nature of a distributed algorithm and the saving of computational load imposed for each node. Thus, it proves useful for a practical deployment. In addition, the proposed algorithm rapidly converges to a very accurate solution within a few iterations. Simulation results ensure that the proposed LEACH-XMP maximizes the network lifetime and outperforms existing techniques consistently.
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