Parallel RTS Processing MAC Protocol (PRP-MAC) can improve network throughput, but data packets are not always sent in a synchronized way. So PRP-MAC still produces the packet collisions in the network, which impact t...
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Probability artificial neural network (PNN) and back propagation neural network (BPNN) are used in processing of the simulated data of heavy metals biosensors. The probability artificial neural network is used in patt...
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The purpose of this article is to give a brief overview on the current work towards the emerging research problem of secure machine learning. Machine learning technique has been applied widely in various applications ...
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The problem of estimating and tracking the fundamental frequency of a periodic signal is formulated in short Fourier transform and viterbi algorithm (STFT-VA) is proposed. An improvement to peak search is proposed, wh...
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In this paper, an handwritten character recognition system based on acceleration is presented. The character recognition system using a 3-dimensional (3D) accelerometer, includes three procedures: original signal dete...
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The features of the RFID system and the constraints of RFID devices may bring about various privacy problems. After analyzing some existing RFID protocols, this paper proposes a new protocol based on random number and...
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ISBN:
(纸本)9781849195058
The features of the RFID system and the constraints of RFID devices may bring about various privacy problems. After analyzing some existing RFID protocols, this paper proposes a new protocol based on random number and encryption hash. A process of formal analysis is presented by using BAN logic;the security and the complexity of this protocol are compared with other typical ones. The messages in the protocol are encrypted by key, it makes the protocol can prevent from illegal reading, tracking, eavesdropping, spoofing and replay attack. Both theory and analysis show that this new protocol can ensure the security of RFID systems and keep low-cost.
In recent years, multimedia network services have moved from a single service to rich services which integrate multiservice capabilities integration. If all service requests require the user to send the request by him...
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ISBN:
(纸本)9781424492688
In recent years, multimedia network services have moved from a single service to rich services which integrate multiservice capabilities integration. If all service requests require the user to send the request by himself, this will result to a huge control function load and complex service collaboration. In order to address service interaction and reuse the service capability, 3GPP proposes a Service Capability Interaction Manager, which can provide service capabilities invocation and service interaction management between Application Servers (ASs) and Serving-Call Session Control Function (S-CSCF). However, its architecture may cause joint and cooperation problems between the different service providers. In this paper, we propose a scalable service capability interaction framework called ServiceChord that can process multiple service capabilities with different ASs and reduce the call set-up delay while communicating with the S-CSCF. The Chord DHT technique is used to improve the framework, leading to a reduction of message redundancy on the S-CSCF while achieving an efficient service capability interaction, and providing scalability for IMS services and ASs.
Recent convergence of information communications technology and sensing equipment is creating new de- mands and opportunities for wireless sensor networks without technological restrictions, such as cyber- physical sy...
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Recent convergence of information communications technology and sensing equipment is creating new de- mands and opportunities for wireless sensor networks without technological restrictions, such as cyber- physical systems and internet of things. The fast-growing number of wireless sensor networks, the variety of sensors, the different granularity of time control in cyber-physical systems,
Service composition is an important means for integrating the individual Web services to create new value added systems that can satisfy complex requirements. However, it is a challenge to analyze security requirement...
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Regression testing is a hot research area for Web service composition, which has direct impact on QoS of applications. This paper proposes an aspect-oriented regression test technique for analyzing functionalities of ...
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ISBN:
(纸本)1891706292
Regression testing is a hot research area for Web service composition, which has direct impact on QoS of applications. This paper proposes an aspect-oriented regression test technique for analyzing functionalities of service composition. An extended version of Petri net is proposed as the underlying formalism. Services and components are modeled by Petri nets, service evolution is specified as crosscutting concerns, and in turn woven into the testing model of service composition by following weaving rules. A regression testing algorithm of service composition is designed. Theories of Petri nets help prove the effectiveness of the testing method. A case study shows that the approach simplifies the process of testing, and improves its efficiency as well.
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