A New Energy-E±cient Multipath Routing in Internet of Things Based on Gray Theory Rogayye Khaleghnasab Department of Computer Engineering Yasooj Branch, Islamic Azad University, Yasooj, Iran Karamollah Bagherifard * Department of Computer Engineering Yasooj Branch, Islamic Azad University, Yasooj, Iran Young Researchers and Elite Club Yasooj Branch, Islamic Azad University, Yasooj, Iran karam.bagherifard@gmail.com Samad Nejatian Young Researchers and Elite Club Yasooj Branch, Islamic Azad University Yasooj, Iran Department of Electrical Engineering Yasooj Branch, Islamic Azad University Yasooj, Iran Hamid Parvin * Institute of Research and Development Duy Tan University, Da Nang 550000, Vietnam Faculty of Information Technology Duy Tan University, Da Nang 550000, Vietnam Department of Computer Science Nourabad Mamasani Branch, Islamic Azad University Mamasani, Iran parvin@iust.ac.ir Bahman Ravaei Department of Computer Engineering Yasouj University, Yasouj, Iran Published 22 October 2020 Internet of Things (IoT) is a network of smart things. It indicates the ability that the mentioned physical things transfer information with each other. The characteristics of these networks, such *Corresponding authors. International Journal of Information Technology & Decision Making Vol. 19, No. 6 (2020) 1581–1617 ° c World Scienti¯c Publishing Company DOI: 10.1142/S0219622020500388 1581 Int. J. Info. Tech. Dec. Mak. 2020.19:1581-1617. Downloaded from www.worldscientific.com by 52.91.53.142 on 01/08/21. Re-use and distribution is strictly not permitted, except for Open Access articles.