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Satellite transmission based on IP may play important role for communication between event site and PPDR centers during large planned scenarios and disaster/unplanned ones. Geostationary SATCOM links that can be installed ad-hoc in any location present reliable and efficient way to transmit IP data even for voice communication based on VoIP. Using different mechanisms that handle multi connections...
The paper develops a home security system that is equipped with RS-232, security module, appliance control module, Ethernet and mobile communication. The supervised computer can control the security module, appliance control module and small robots using RF interface. The controllers of these modules are HOLTECK chip. The user can supervised the security system using cell phone or PDA through GSM...
Information privacy is usually concerned with the confidentiality of personally identifiable information (PII), such as electronic medical records. Nowadays, Web services are used to support different applications which may contain PII, such as healthcare applications. Thus, the information access control mechanism for Web services must be embedded into privacy-enhancing technologies. Further as application...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
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