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Discrete Event System (DES) has been used for Failure Detection and Diagnosis (FDD) of a wide range of systems. For real time systems, timed DES based frameworks diagnose failures leading to violation of delays or deadlines. These schemes declare a failure to be diagnosable if it always i.e., in all timed-traces, results in timing violations within finite time of its occurrence. The basic assumption...
Wireless sensor networks (WSN) face different security threats that disrupt the normal activities and degrade the performance of the networks. The wormhole attack is one of the most severe security attacks in WSN. In this paper, we analyze the effect of the wormhole attack in Optimized Link State routing (OLSR), which is a standard proactive routing protocol for WSN. A modified version of wormhole...
Optimized Link State Routing (OLSR) is a standard proactive routing protocol for Wireless Sensor Network (WSN). OLSR uses two kinds of the control messages: Hello and Topology Control (TC). As these messages are un-authenticated, OLSR is prone to several attacks namely, black hole, wormhole, Gray hole etc. This paper is focused at Sleep Deprivation Torture Attack on OLSR. Sleep deprivation attack...
Digital signal processing requires a large number of mathematical operations to be performed in high speed real time mode and repeatedly on a set of input data. The power requirements of the DSPs are increasing day by day along with the processing speed and chip area. Because of the limitation of power supply and space, mobile devices cannot use the general purpose processors to process digital signals,...
In wireless network, nodes are not connected by physical links. Routing is an important factor in wireless network. Ad-hoc On-demand Distance Vector (AODV) is one of the most widely used routing protocol in wireless sensor networks. AODV is a stateless protocol that establishes and maintains a single route between source and destination. If the path is disrupted, then another alternate path is determined...
In wireless network, nodes are not connected by physical links. Routing is an important factor in wireless network. Ad-hoc On-demand Distance Vector (AODV) is one of the most widely used routing protocol in wireless sensor networks. AODV is a stateless protocol that establishes and maintains a single route between source and destination. If the path is disrupted, then another alternate path is determined...
In the recent days, the exponential growth in functionality of mobile devices leads the manufacturers to develop more and more sophisticated microprocessors and microcontrollers. The power requirements of the microprocessors are increasing day by day along with the processing speed and chip area. So, rather than traditional number systems, Residue Number System (RNS) is becoming attractive for their...
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