In the application of large-scale ancient site protection, it is necessary to continuously monitor the ambient light, temperature, humidity and so on. However, it is impractical to frequently replace the nodes’ batte...In the application of large-scale ancient site protection, it is necessary to continuously monitor the ambient light, temperature, humidity and so on. However, it is impractical to frequently replace the nodes’ battery in the protected areas. So, the key methods to prolong the network lifetime are to aggregate the collected data and reduce the number of transferring messages. In this paper a Lightweight Data Aggregation Protocol (LDAP) based on the characteristics of the environmental changes in ancient sites is proposed. It has been implemented in the Lab with a dozen of MICAz motes and deployed in the real ancient sites. The result shows that LDAP is effective in reducing the number of transferring packets and satisfies the real application requirements.展开更多
An attribute-based generalized signcryption scheme based on bilinear pairing has been proposed. By changing attributes, encryption-only mode, signature-only mode, and signcryption mode can be switch adaptively. It sho...An attribute-based generalized signcryption scheme based on bilinear pairing has been proposed. By changing attributes, encryption-only mode, signature-only mode, and signcryption mode can be switch adaptively. It shows that the scheme achieves the semantic security under the decisional bilinear Diffie- Hellman assumption and achieves the unforgeability under the computational Diffie-Hellman assumption. It is more efficient than traditional way and can be used to secure the big data in networks.展开更多
For ecologists,understanding the reaction of animals to environmental changes is critical.Using networked sensor technology to measure wildlife and environmental parameters can provide accurate,real-time and comprehen...For ecologists,understanding the reaction of animals to environmental changes is critical.Using networked sensor technology to measure wildlife and environmental parameters can provide accurate,real-time and comprehensive data for monitoring,research and conservation of wildlife.This paper reviews:(i)conventional detection technology;(ii)concepts and applications of the Internet of Things(IoT)in animal ecology;and(iii)the advantages and disadvantages of IoT.The current theoretical limits of IoT in animal ecology are also discussed.Although IoT offers a new direction in animal ecological research,it still needs to be further explored and developed as a theoretical system and applied to the appropriate scientific frameworks for understanding animal ecology.展开更多
文摘In the application of large-scale ancient site protection, it is necessary to continuously monitor the ambient light, temperature, humidity and so on. However, it is impractical to frequently replace the nodes’ battery in the protected areas. So, the key methods to prolong the network lifetime are to aggregate the collected data and reduce the number of transferring messages. In this paper a Lightweight Data Aggregation Protocol (LDAP) based on the characteristics of the environmental changes in ancient sites is proposed. It has been implemented in the Lab with a dozen of MICAz motes and deployed in the real ancient sites. The result shows that LDAP is effective in reducing the number of transferring packets and satisfies the real application requirements.
基金This work is partially supported by Natural Science Foundation of China (61103231,61272492, 61462408, 61103230), the Project funded by China Postdoctoral Science Foundation (2014M562445).
文摘An attribute-based generalized signcryption scheme based on bilinear pairing has been proposed. By changing attributes, encryption-only mode, signature-only mode, and signcryption mode can be switch adaptively. It shows that the scheme achieves the semantic security under the decisional bilinear Diffie- Hellman assumption and achieves the unforgeability under the computational Diffie-Hellman assumption. It is more efficient than traditional way and can be used to secure the big data in networks.
基金We thank Dr Derek Dunn for improving the English in the present paper.This research was supported by:the National Nature Science Foundation of China(grant numbers:31130061,31270441,61170218 and 61272461)the FokYing Tung Education Foundation(grant number:131105)the National Science Foundation for Fostering Talents in Basic Research of the National Natural Science Foundation of China(J1210063).
文摘For ecologists,understanding the reaction of animals to environmental changes is critical.Using networked sensor technology to measure wildlife and environmental parameters can provide accurate,real-time and comprehensive data for monitoring,research and conservation of wildlife.This paper reviews:(i)conventional detection technology;(ii)concepts and applications of the Internet of Things(IoT)in animal ecology;and(iii)the advantages and disadvantages of IoT.The current theoretical limits of IoT in animal ecology are also discussed.Although IoT offers a new direction in animal ecological research,it still needs to be further explored and developed as a theoretical system and applied to the appropriate scientific frameworks for understanding animal ecology.
