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| 1 | A survey of edge computing-based designs for IoT security显示文摘Pervasive IoT applications enable us to perceive,analyze,control,and optimize the traditional physical systems.Recently,security breaches in many IoT applications have indicated that IoT applications may put the physical systems at risk.Severe resource constraints and insufficient security design are two major causes of many security problems in IoT applications.As an extension of the cloud,the emerging edge computing with rich resources provides us a new venue to design and deploy novel security solutions for IoT applications.Although there are some research efforts in this area,edge-based security designs for IoT applications are still in its infancy.This paper aims to present a comprehensive survey of existing IoT security solutions at the edge layer as well as to inspire more edge-based IoT security designs.We first present an edge-centric IoT architecture.Then,we extensively review the edge-based IoT security research efforts in the context of security architecture designs,firewalls,intrusion detection systems,authentication and authorization protocols,and privacy-preserving mechanisms.Finally,we propose our insight into future research directions and open research issues. | Kewei Sha T.Andrew Yang Wei Wei Sadegh Davari | 2020 | Digital Communications and Networks2020，6，2： | 3 |
| 2 | Asymmetry-aware link quality services in wireless sensor networks 显示文摘 | DU JUNZHAO SHI WEISONG SHA KEWEI | 2005 | Journal of Embedded Computing2005，3，2： | 1 |
| 3 | WEAR: a balanced, faulttolerant, energy-aware routing protocol in WSNs 显示文摘 | Kewei Sha Junzhao Du Wrisong Shi | 2007 | Tsinghua Science and Technology (S1748-1279)2007，12，1： | 1 |
| 4 | Numerical study on the effect of in-situ stress on smoothwall blasting in deep tunnelling显示文摘In the present study,a numerical model is first calibrated against the crack networks and pressure attenuation data in laboratory blasting test.Then,based on the calibrated numerical model,two-hole plane models are developed and used to perform a series of sim-ulations of smoothwall blasting in deep tunnelling subjected to in-situ stress.The evolutions of rock fracture and excavation damage zone in the roof/floor and sidewalls under different far-field hydrostatic pressure and anisotropic in-situ stress conditions are numerically investigated.The findings in numerical modelling are also analytically interpreted with the stress distributions around the designed tunnel perimeter and perimeter borehole.The numerical and analytical results show that the variations of rock cracking and excavation dam-aged zone induced by smoothwall blasting with in-situ stress are mainly attributed to the high tangential compressive stress concentration around the remaining rock after inner primary blasts and the tensile stress acting on the wall of perimeter hole,which control the crack propagation and initiation respectively.At last,the implications of findings for practical smoothwall blasting in deep tunnelling are discussed. | Xudong Li Kewei Liu Jiacai Yang Yanyan Sha Ruitao Song | 2023 | Underground Space2023，，4： | 0 |
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