Agent systems are a way to increase flexibility of Manufacturing Execution systems (MES) by scheduling tasks in a distributed autonomous way. Usage of autonomous, collaborative agents and off-the-shelf hardware and so...
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Agent systems are a way to increase flexibility of Manufacturing Execution systems (MES) by scheduling tasks in a distributed autonomous way. Usage of autonomous, collaborative agents and off-the-shelf hardware and software components yet introduce vulnerabilities. This article presents a structural security model for protecting a distributed agent system based on the concept of a hierarchical model. In particular the necessary key system is introduced. The developed security model takes into account typical properties of embedded systems (low computation power, real-time capabilities, autarkic operation) used in automation environments.
sensor network security solutions that have been proposed so far are mostly built on the assumption of a trusted environment, which is not very realistic so we need trust management before deploying any other security...
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ISBN:
(纸本)0769526764
sensor network security solutions that have been proposed so far are mostly built on the assumption of a trusted environment, which is not very realistic so we need trust management before deploying any other security solution. Traditional trust management schemes that have been developed for wired and wireless ad-hoc networks are not suitable for wireless sensor networks because of higher consumption of resources such as memory and power. In this paper, we propose a novel lightweight group based trust management scheme (GTMS) for distributed wireless sensor networks in which the whole group will get a single trust value. Instead of using completely centralized or distributed trust management schemes, GTMS uses hybrid trust management approach that helps in keeping minimum resource utilization at the sensor nodes.
In this paper, we describe how Motorola has deployed model-driven engineering in product development, in particular for the development of trustworthy and highly reliable telecommunications systems, and outline the be...
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ISBN:
(纸本)0769525539
In this paper, we describe how Motorola has deployed model-driven engineering in product development, in particular for the development of trustworthy and highly reliable telecommunications systems, and outline the benefits obtained. Model-driven engineering has dramatically increased both the quality and the reliability of software developed in our organization, as well as the productivity of our software engineers. Our experience demonstrates that model-driven engineering significantly improves the development process for trustworthy computing, systems.
Collaborative signal processing is one of the most promising applications that are currently being investigated for sensor networks. In this paper, we use FTT computation as a vehicle to highlight the issues involved ...
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ISBN:
(纸本)1424402115
Collaborative signal processing is one of the most promising applications that are currently being investigated for sensor networks. In this paper, we use FTT computation as a vehicle to highlight the issues involved in realizing distributed computations over sensor networks that have global and local communication and synchronization characteristics. We present a power efficient algorithm for computing I-D Fast Fourier Transform (FFT) over single and multi-hop, wireless sensor networks. The proposed algorithm reduces the number of transmissions, eliminates typical redundant computations in a distributed FFT algorithm and uniformly maps complex multiplications over all *** nodes by introducing an extra bit-complement permutation stage after first (log(2)N)/2 iterations. We show that the proposed algorithm improves energy consumption by 36% on the average on multi-hop sensor networks. This saving in energy consumption significantly, improves the battery life of the sensor nodes thereby, increasing lifetime of the sensor network.
We propose a distributed scheme called ADAPTIVE-GROUP-MERGE for sensor networks that, given a parameter k, approximates a geometric shape by a k-vertex polygon. The algorithm is well suited to the distributed computin...
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In this paper, we present a multi-layered, middleware-driven, multi-agent, interoperable architecture for distributedsensor networks, that bridges the gap between the programmable application layer consisting of soft...
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ISBN:
(纸本)9781424405060
In this paper, we present a multi-layered, middleware-driven, multi-agent, interoperable architecture for distributedsensor networks, that bridges the gap between the programmable application layer consisting of software agents and the physical layer consisting of extremely small, low power devices that combine programmable computing with sensing, tracking and wireless communication capabilities. We develop an energy-efficient approach for collaborative processing among multiple sensor nodes using a mobile-agent-based computing model. Unlike the traditional client/server-based model where each sensor node sends data to the sink, in this model the sink/base-station deploys mobile agents that migrate from node to node following a certain itinerary and fuses the information/data locally at each node. This way, the intelligence is distributed throughout the network edge and communication cost is reduced to make the sensor network energy-efficient. Simulation results show that the mobile-agent-based approach is advantageous for large distributedsensor network environment.
High quality healthcare environment is an important aspect of modern society. We investigate security and networking architecture of clinical information system, with emphasis on the wireless hop which includes sensor...
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Autonomous robot systems have to manage their energy wisely in order to complete their missions. Typical approaches seek to conserve energy by energy-efficient motion or sensor planning. This paper puts forth a distri...
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ISBN:
(纸本)0780395050
Autonomous robot systems have to manage their energy wisely in order to complete their missions. Typical approaches seek to conserve energy by energy-efficient motion or sensor planning. This paper puts forth a distributedsystems approach to power management. Specifically, it develops and presents AutoPower, which is a model that characterizes robot software systems' computation and communication energy behaviors. With AutoPower, it is possible to make principled decisions about (1) where to deploy software components across the distributedcomputing resources of autonomous robotic systems, and (2) how the different systems involved should communicate to best meet overall mission objectives. We showcase AutoPower by using a multi-robot search-and-rescue mission as a guiding application. For this scenario, application of the model shows that there are counterintuitive energy trade-offs in configuring such application software. Further, by using AutoPower to guide deployment and interconnects at runtime, for certain configurations, overall computing system lifetimes can be increased by up to 57% over a base-line configuration.
Key management is a major challenge in the design and deployment of secure wireless sensor networks. A common assumption in most distributed key management schemes is that all sensor nodes have the same capability. Ho...
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