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Recently the problem of providing effective and appropriate healthcare to elderly and disable people is an important field in relative to the aging of population problems. The objective of information and communication technologies (ICT) is to focus on the new technologies the medical environments, so that it can provide management to accelerate and improve the clinical process. Our contribution is...
Some wireless sensor networks preclude the constant presence of a centralized data collection point, that is, a sink. In such a disconnected or unattended setting, nodes must accumulate sensed data until it can be off loaded to an itinerant sink. Furthermore, if the operating environment is hostile, there is a very real danger of node and data compromise. The unattended nature of the network makes...
Security and privacy of wireless sensor networks are key research issues recently. Most existing researches regarding wireless sensor network security consider homogenous sensor networks. To achieve better security and performance, we adopt a heterogeneous wireless sensor network (HWSN) model that consists of physically different types of sensor nodes. This paper presents a secure message distribution...
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