Journal
IEEE ACCESS
Volume 10, Issue -, Pages 58199-58211Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2022.3178434
Keywords
Clustering algorithms; Wireless sensor networks; Quality of service; Energy consumption; Routing protocols; Throughput; Voting; Energy consumption; large-scale wireless sensor networks; optimal path; QoS
Categories
Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Education [NRF2019R1I1A3A01060631]
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Recent research has shown that energy consumption caused by data collection in a static data collector-based wireless sensor network (WSN) is a major threat to network lifetime. However, the implementation of mobile data collectors (MDCs) in large-scale WSNs has become more popular with the advancement of mobile terminal technology. Yet, there remains a challenge of improving Quality of Service (QoS) criteria and minimizing energy consumption simultaneously.
Some recent researches have shown that the energy consumption problem caused by data collection in a wireless sensor network (WSN) based on a static data collector is a main threat to the network lifetime. However, with the progress of the mobile terminal technology, the implementation of mobile data collectors (MDCs) has become more popular in large-scale WSNs, but it remains a big problem to improve the Quality of Service (QoS) criteria and minimize the energy consumption at the same time. However, most existing systems based on MDCs do not successfully strike a balance between routing energy consumption and QoS. In addition, most WSN protocols fail to maintain their impact when the network topology changes. Thus, for a dynamic WSN, it is important to support an intelligent MDC to continue data propagation despite the inevitable changes in the WSN topology. Considering all the above challenges, we propose a new intelligent MDC based on the traveling salesman problem (TSP) to determine the optimal path traveled by the MDC for energy efficiency and latency. Specifically, our proposed Mobile Data Collectors-Traveling Salesman Problem-Low Energy Adaptive Clustering Hierarchy-K-Means (MDC-TSP-LEACH-K) protocol uses K-Means and Grid clustering algorithm to decrease energy consumption in the cluster head (CH) election phase. Additionally, MDC is utilized as an intermediate between CH and the sink to further enhance the QoS of WSNs, to reduce delays while collecting data, and improve the transmission phase of the LEACH protocol.
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