In recent scenario of Wireless Sensor Networks(WSNs),there are many application developed for handling sensitive and private data such as military information,surveillance data,tracking,etc.Hence,the sensor nodes of W...In recent scenario of Wireless Sensor Networks(WSNs),there are many application developed for handling sensitive and private data such as military information,surveillance data,tracking,etc.Hence,the sensor nodes of WSNs are distributed in an intimidating region,which is non-rigid to attacks.The recent research domains of WSN deal with models to handle the WSN communications against malicious attacks and threats.In traditional models,the solution has been made for defending the networks,only to specific attacks.However,in real-time applications,the kind of attack that is launched by the adversary is not known.Additionally,on developing a security mechanism for WSN,the resource constraints of sensor nodes are also to be considered.With that note,this paper presents an Enhanced Security Model with Improved Defensive Routing Mechanism(IDRM)for defending the sensor network from various attacks.Moreover,for efficient model design,the work includes the part of feature evaluation of some general attacks of WSNs.The IDRM also includes determination of optimal secure paths and Node security for secure routing operations.The performance of the proposed model is evaluated with respect to several factors;it is found that the model has achieved better security levels and is efficient than other existing models in WSN communications.It is proven that the proposed IDRM produces 74%of PDR in average and a minimized packet drop of 38%when comparing with the existing works.展开更多
The mega-constellation is a major future development direction for space-based technologies in communications,navigation,remote sensing,and other fields.However,there are marked security threats to the mega-constellat...The mega-constellation is a major future development direction for space-based technologies in communications,navigation,remote sensing,and other fields.However,there are marked security threats to the mega-constellation.Traditional password-based security protection techniques are inefficient for vast node access authentication because they lack a unified management system and methodology.To address the aforementioned issues,this work presents a mega-constellation node security access authentication technique based on sharding blockchain via the“1+N+1”mega-constellation security and trustworthiness architecture.We build a distributed node security access authentication system based on functional domains and functional cross-domains,and we develop mathematical models for the complexity of messaging and space,the throughput of transactions,and the overall estimation of sharding blockchain systems.The results demonstrate that every indicator outperforms conventional blockchain techniques,which has major implications for mega-constellation by creating a complete link security and trustworthiness system.A universal solution for the number of consensus nodes I and the number of shards N is found,which can be used to guide parameter design in mega-constellation sharding blockchain systems.展开更多
文摘In recent scenario of Wireless Sensor Networks(WSNs),there are many application developed for handling sensitive and private data such as military information,surveillance data,tracking,etc.Hence,the sensor nodes of WSNs are distributed in an intimidating region,which is non-rigid to attacks.The recent research domains of WSN deal with models to handle the WSN communications against malicious attacks and threats.In traditional models,the solution has been made for defending the networks,only to specific attacks.However,in real-time applications,the kind of attack that is launched by the adversary is not known.Additionally,on developing a security mechanism for WSN,the resource constraints of sensor nodes are also to be considered.With that note,this paper presents an Enhanced Security Model with Improved Defensive Routing Mechanism(IDRM)for defending the sensor network from various attacks.Moreover,for efficient model design,the work includes the part of feature evaluation of some general attacks of WSNs.The IDRM also includes determination of optimal secure paths and Node security for secure routing operations.The performance of the proposed model is evaluated with respect to several factors;it is found that the model has achieved better security levels and is efficient than other existing models in WSN communications.It is proven that the proposed IDRM produces 74%of PDR in average and a minimized packet drop of 38%when comparing with the existing works.
基金the specific grant from China’s National Social Science Foundation (U23B2025 and U22B2014).
文摘The mega-constellation is a major future development direction for space-based technologies in communications,navigation,remote sensing,and other fields.However,there are marked security threats to the mega-constellation.Traditional password-based security protection techniques are inefficient for vast node access authentication because they lack a unified management system and methodology.To address the aforementioned issues,this work presents a mega-constellation node security access authentication technique based on sharding blockchain via the“1+N+1”mega-constellation security and trustworthiness architecture.We build a distributed node security access authentication system based on functional domains and functional cross-domains,and we develop mathematical models for the complexity of messaging and space,the throughput of transactions,and the overall estimation of sharding blockchain systems.The results demonstrate that every indicator outperforms conventional blockchain techniques,which has major implications for mega-constellation by creating a complete link security and trustworthiness system.A universal solution for the number of consensus nodes I and the number of shards N is found,which can be used to guide parameter design in mega-constellation sharding blockchain systems.
