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In Wireless Sensor Networks, key management is required to offer a secure communication between sensor nodes. Many key management mechanisms have been proposed while considering the characteristics of sensor nodes. Despite the advances of key management techniques, wireless sensor networks still have vulnerable point since sensor nodes have the communication restrictions such as an ultralight, a low...
Automated animal monitoring with energy efficient wireless devices mounted on the animals can improve efficiency of farming industry and increase its profitability by decreasing reliance on human labor. We discuss the practical deployment of delay tolerant store and forward cattle monitoring architecture that provides data retention, detecting custom events, notification issuing, remote and in-situ...
The security of multimedia data in wireless ad hoc networks (WANet) is commonly provided by encryption, i.e., the mathematical process that transforms a plaintext message into unintelligible ciphertext. Nevertheless, the classical and modern ciphers have all been developed without taking into consideration the intrinsic characteristics of multimedia flows. Our approach aims to reduce the computational...
Expected growth in use and implementation of wireless sensor networks (WSNs) in different environments and for different applications creates new security challenges. In WSNs, a malicious node may initiate incorrect path information, change the contents of data packets, and even hijack one or more genuine network nodes. As the network reliability completely depends on individual nodespsila presence...
This paper discusses the problem of achieving bandwidth and energy-efficient neighborhood group key distributions (NGKD) in tactical wireless sensor networks (TWSNs). We present new techniques that improve NGKD performance while also improving the resilience of TWSNs against attacks that combine node capture with message interception. This is accomplished without introducing additional communications...
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