Adaptive control of the packet transmission period with solar energy harvesting prediction in wireless sensor networks

Autor: Jihoon Yang, Kideok Kwon, Younghwan Yoo
Rok vydání: 2015
Předmět:
Zdroj: Sensors (Basel, Switzerland)
SENSORS(15): 5
Sensors, Vol 15, Iss 5, Pp 9741-9755 (2015)
Sensors
Volume 15
Issue 5
Pages 9741-9755
ISSN: 1424-8220
Popis: A number of research works has studied packet scheduling policies in energy scavenging wireless sensor networks, based on the predicted amount of harvested energy. Most of them aim to achieve energy neutrality, which means that an embedded system can operate perpetually while meeting application requirements. Unlike other renewable energy sources, solar energy has the feature of distinct periodicity in the amount of harvested energy over a day. Using this feature, this paper proposes a packet transmission control policy that can enhance the network performance while keeping sensor nodes alive. Furthermore, this paper suggests a novel solar energy prediction method that exploits the relation between cloudiness and solar radiation. The experimental results and analyses show that the proposed packet transmission policy outperforms others in terms of the deadline miss rate and data throughput. Furthermore, the proposed solar energy prediction method can predict more accurately than others by 6.92%.
Databáze: OpenAIRE