Minimum transmission delay algorithm for multi-hop nodes in Internet of Things based on symmetric algorithm
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ORIGINAL RESEARCH
Minimum transmission delay algorithm for multi‑hop nodes in Internet of Things based on symmetric algorithm Chengbo Hu1,2 · Yang Liu3 · Fengbo Tao1 · Yongling Lu1 · Zhen Wang1 Received: 31 May 2020 / Accepted: 3 October 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In view of the increase of network information transmission times, the transmission delay of multi hop nodes in the Internet of Things increases, resulting in the decline of network information transmission performance. In order to improve the quality and performance of information transmission, a minimum transmission delay algorithm of multi-hop nodes in the Internet of Things is designed based on symmetric algorithm. In the perception layer of the Internet of Things, based on the revocable symmetric encryption algorithm, the multi-hop nodes in the perception layer are encrypted; The link information transmission delay under the direct transmission, cooperative transmission and multi-hop transmission modes is compared, and the gradient projection algorithm is used to solve the problem of minimizing the delay of multi-hop nodes’ information transmission in the Internet of Things. After calculating the projection matrix and the gradient, the iteration terminates when the steady link traffic and the delay value are obtained. The source node refers to the network node that acts as the source to send the original data packet; the source node uses this algorithm to select the transmission mode with minimum delay, and sends information to the destination node step by step. The simulation test shows that the algorithm can guarantee the security of data transmission of multi-hop nodes in the Internet of Things, and the transmission delay is the minimum. Keywords Symmetric algorithm · Internet of Things · Multi-hop nodes · Gradient projection algorithm · Transmission delay algorithm
1 Introduction The Internet of Things (IOT) is an Internet connected by things. Internet of Things refers to real-time acquisition of * Chengbo Hu [email protected] Yang Liu [email protected] Fengbo Tao [email protected] Yongling Lu [email protected] Zhen Wang [email protected] 1
State Grid Jiangsu Electric Power Co., Ltd. Research Institute, Nanjing, China
2
School of Electrical Engineering, Southeast University, Nanjing, China
3
Department of Technology, State Grid Jiangsu Electric Power Co., Ltd., Nanjing, China
any object or process that needs monitoring, connection and interaction through various devices and technologies such as various information sensors, radio frequency identification technology, global positioning system, infrared sensor, laser scanner, etc. (Singh et al. 2017). The concept of Internet of Things was put forward at the World Summit on the Information Society in 2005 and has attracted worldwide attention (Li et al. 2017).With the growth of wireless communication service demand and the acceleration of social informatization process, the Internet of Things has become a research hotspot
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