مقاله انگلیسی استراتژی انتخاب رله مبتنی بر AHP برای WSN های برداشت انرژی
Highlights
Abstract
Keywords
Introduction
System model and analysis
AHP based relay selection strategy
Performance analysis and simulation experiment
Conclusion
CRediT authorship contribution statement
Declaration of Competing Interest
Acknowledgments
References
Vitae
Abstract
In order to save energy consumption, improve network performance and prolong the life cycle of communication network, a reasonable relay selection algorithm for energy collection wireless sensor networks is proposed. Firstly, taking solar wireless sensor network as an example, the energy consumption and solar energy state of sensor nodes are mathematically analyzed. Then, the cooperation probability is optimized with the interruption probability threshold as the constraint, and the relay nodes participating in the cooperative transmission are controlled to save the energy of cooperative transmission in the system. According to the solar energy status, network energy balance, signal-tonoise ratio and outage probability of the relay node, a multi criteria relay selection strategy is adopted to select the optimal node. Compared with the comparison algorithm, this algorithm can save at least 47.1% power consumption and prolong the network lifetime by 25.9%. © 2021 Elsevier B.V. All rights reserved.
Introduction
With the continuous development of wireless communication technology and the high popularity of wireless terminal equipment, the rapid development of mobile communication industry has stepped into the 5G era. However, there are some factors hindering the development of wireless communication network. In the harsh external environment and the communication environment with special mission requirements, it is difficult to arrange the special communication infrastructure on the network site. This requires a strong dynamic adaptability and survivability of the network to provide strong support for information communication. For example, smart city, smart medical, smart transportation and other applications are supported by wireless network. Wireless Sensor Network (WSN) is a kind of wireless network formed by self-organization of sensor nodes. Sensor nodes can obtain part of the information parameters in the external environment, and then transmit the collected information data after simple operation. Because of its three advantages of selforganization, distributed and flexible, it has attracted great attention of researchers and played an irreplaceable key role in wireless communication. At present, the application of WSN has extended to many fields.