The Experts below are selected from a list of 38970 Experts worldwide ranked by ideXlab platform
B. Fitzsimons - One of the best experts on this subject based on the ideXlab platform.
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NOMS - RPM Real Time Performance management
NOMS 98 1998 IEEE Network Operations and Management Symposium, 1998Co-Authors: J. Seraj, A. Newcombe, S. Morris, P. Haraszti, B. FitzsimonsAbstract:Traditionally, Performance management of telecommunications networks has been undertaken on a Network Element (NE) basis, often in an uncoordinated manner and requiring sophisticated human expertise for relatively trivial tasks. However, as networks become increasingly diverse and complex, and the demands upon them increase, this approach is more and more inefficient. Additionally, the advent of distributed processing networks, such as mobile cellular, IN (Intelligent Networks) and TINA (Telecommunication Information Networking Architecture), means that local Performance management will no longer be sufficient and co-ordination of these activities across the network is now required. The problems with centralised Performance management of networks are the volume of data, the complexity of the network, and the resultant latencies in response Times to network problems, A Real Time Performance management system for telecommunications networks is described, which can form the basis of Real Time decentralised control of future telecommunications networks. The proposed Performance measurement system provides open interfaces for subscription to Real Time Performance information at varying degrees of abstraction, corresponding to the required management view. The measurement system takes an event-based approach to delivering firm Real Time Performance information. The measurement enables Real Time and near Real Time control systems to be decentralised within the management network, both at a local level and at a regional level. A hierarchical approach both reduces the volume and complexity of Performance information and facilitates the development of a "management by delegation" paradigm in the management network.
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RPM Real Time Performance management
NOMS 98 1998 IEEE Network Operations and Management Symposium, 1998Co-Authors: J. Seraj, A. Newcombe, S. Morris, P. Haraszti, B. FitzsimonsAbstract:Traditionally, Performance management of telecommunications networks has been undertaken on a Network Element (NE) basis, often in an uncoordinated manner and requiring sophisticated human expertise for relatively trivial tasks. However, as networks become increasingly diverse and complex, and the demands upon them increase, this approach is more and more inefficient. Additionally, the advent of distributed processing networks, such as mobile cellular, IN (Intelligent Networks) and TINA (Telecommunication Information Networking Architecture), means that local Performance management will no longer be sufficient and co-ordination of these activities across the network is now required. The problems with centralised Performance management of networks are the volume of data, the complexity of the network, and the resultant latencies in response Times to network problems, A Real Time Performance management system for telecommunications networks is described, which can form the basis of Real Time decentralised control of future telecommunications networks. The proposed Performance measurement system provides open interfaces for subscription to Real Time Performance information at varying degrees of abstraction, corresponding to the required management view. The measurement system takes an event-based approach to delivering firm Real Time Performance information. The measurement enables Real Time and near Real Time control systems to be decentralised within the management network, both at a local level and at a regional level. A hierarchical approach both reduces the volume and complexity of Performance information and facilitates the development of a "management by delegation" paradigm in the management network.
Yunfa Li - One of the best experts on this subject based on the ideXlab platform.
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A Real-Time Performance Evaluation Model for Distributed Software with Reliability Constrains
The Journal of Supercomputing, 2005Co-Authors: Yunfa Li, Peng LuAbstract:In this paper, we propose an approach for the Real-Time Performance analysis of distributed software with reliability constraints, called Athena. The approach is based on the Real-Time and reliability Performance analysis of distributed program. In Athena, two important factors, imperfect nodes and the links reliability, are introduced. The algorithms proposed in Athena generates sub-graphs, counts the reliability of each sub-graph, calculates the transmission Time for all the transmission paths of each data file, and computes response Time of each data file with reliability constraint. In this way, the Real-Time Performance of distributed software with reliability constrains can be evaluated.
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Aeneas: Real-Time Performance evaluation approach for distributed programs with reliability-constrains
19th IEEE International Parallel and Distributed Processing Symposium, 2005Co-Authors: Yunfa Li, Hao WuAbstract:A novel approach, based on the execution state of distributed programs, is proposed in this paper, called Aeneas. It is for the Real-Time Performance analysis of distributed programs with reliability-constrains. In Aeneas, there are two important factors, the available data files and the transmission paths of each available data file. Some algorithms are designed to find all the transmission paths of each data file needed while the program executes, count the transmission Time for each transmission path, then get the aggregate transmission Time, calculate the fastest and the slowest response Time of distributed programs with reliability-constrains. A representative case is analyzed, and the results show that it is an efficient way to evaluate the Real-Time Performance of distributed programs with reliability-constrains.
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Athena: a Real-Time Performance evaluation for distributed software with reliability constraints
18th International Parallel and Distributed Processing Symposium 2004. Proceedings., 2004Co-Authors: Yunfa Li, Hao ChenAbstract:Summary form only given. We propose an approach for the Real-Time Performance analysis of distributed software with reliability constraints, called Athena. The approach is based on the principle of distributed program Real-Time Performance analysis. In Athena, we design some algorithms, count the transmission Time for all the transmission paths of each data file, and then calculate response Time of each data file with reliability constraint. So the Real-Time Performance of distributed software with reliability-constrained can be evaluated.
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IPDPS - Athena: a Real-Time Performance evaluation for distributed software with reliability constraints
18th International Parallel and Distributed Processing Symposium 2004. Proceedings., 2004Co-Authors: Yunfa Li, Hao ChenAbstract:Summary form only given. We propose an approach for the Real-Time Performance analysis of distributed software with reliability constraints, called Athena. The approach is based on the principle of distributed program Real-Time Performance analysis. In Athena, we design some algorithms, count the transmission Time for all the transmission paths of each data file, and then calculate response Time of each data file with reliability constraint. So the Real-Time Performance of distributed software with reliability-constrained can be evaluated.
J. Seraj - One of the best experts on this subject based on the ideXlab platform.
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NOMS - RPM Real Time Performance management
NOMS 98 1998 IEEE Network Operations and Management Symposium, 1998Co-Authors: J. Seraj, A. Newcombe, S. Morris, P. Haraszti, B. FitzsimonsAbstract:Traditionally, Performance management of telecommunications networks has been undertaken on a Network Element (NE) basis, often in an uncoordinated manner and requiring sophisticated human expertise for relatively trivial tasks. However, as networks become increasingly diverse and complex, and the demands upon them increase, this approach is more and more inefficient. Additionally, the advent of distributed processing networks, such as mobile cellular, IN (Intelligent Networks) and TINA (Telecommunication Information Networking Architecture), means that local Performance management will no longer be sufficient and co-ordination of these activities across the network is now required. The problems with centralised Performance management of networks are the volume of data, the complexity of the network, and the resultant latencies in response Times to network problems, A Real Time Performance management system for telecommunications networks is described, which can form the basis of Real Time decentralised control of future telecommunications networks. The proposed Performance measurement system provides open interfaces for subscription to Real Time Performance information at varying degrees of abstraction, corresponding to the required management view. The measurement system takes an event-based approach to delivering firm Real Time Performance information. The measurement enables Real Time and near Real Time control systems to be decentralised within the management network, both at a local level and at a regional level. A hierarchical approach both reduces the volume and complexity of Performance information and facilitates the development of a "management by delegation" paradigm in the management network.
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RPM Real Time Performance management
NOMS 98 1998 IEEE Network Operations and Management Symposium, 1998Co-Authors: J. Seraj, A. Newcombe, S. Morris, P. Haraszti, B. FitzsimonsAbstract:Traditionally, Performance management of telecommunications networks has been undertaken on a Network Element (NE) basis, often in an uncoordinated manner and requiring sophisticated human expertise for relatively trivial tasks. However, as networks become increasingly diverse and complex, and the demands upon them increase, this approach is more and more inefficient. Additionally, the advent of distributed processing networks, such as mobile cellular, IN (Intelligent Networks) and TINA (Telecommunication Information Networking Architecture), means that local Performance management will no longer be sufficient and co-ordination of these activities across the network is now required. The problems with centralised Performance management of networks are the volume of data, the complexity of the network, and the resultant latencies in response Times to network problems, A Real Time Performance management system for telecommunications networks is described, which can form the basis of Real Time decentralised control of future telecommunications networks. The proposed Performance measurement system provides open interfaces for subscription to Real Time Performance information at varying degrees of abstraction, corresponding to the required management view. The measurement system takes an event-based approach to delivering firm Real Time Performance information. The measurement enables Real Time and near Real Time control systems to be decentralised within the management network, both at a local level and at a regional level. A hierarchical approach both reduces the volume and complexity of Performance information and facilitates the development of a "management by delegation" paradigm in the management network.
Jianbo Luo - One of the best experts on this subject based on the ideXlab platform.
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A security scheme for intelligent substation communications considering Real-Time Performance
Journal of Modern Power Systems and Clean Energy, 2019Co-Authors: Jie Zhang, Jun’e Li, Xiong Chen, Ting Wang, Ming Ni, Jianbo LuoAbstract:Tampering, forgery and theft of the measurement and control messages in a smart grid could cause one breakdown in the power system. However, no security measures are employed for communications in intelligent substations. Communication services in an intelligent substation have high demands for Real-Time Performance, which must be considered when deploying security measures. This paper studies the security requirements of communication services in intelligent substations, analyzes the security capabilities and shortages of IEC 62351, and proposes a novel security scheme for intelligent substation communications. This security scheme covers internal and telecontrol communications, in which the Real-Time Performance of each security measure is considered. In this scheme, certificateless public key cryptography (CLPKC) is used to avoid the latency of certificate exchange in certificate-based cryptosystem and the problem of key escrow in identity-based cryptosystem; the security measures of generic object-oriented substation event, sampled measure value and manufacturing message specification in IEC 62351 are improved to meet the Real-Time requirements of the messages as well as to provide new security features to resist repudiation and replay attacks; and the security at transport layer is modified to fit CLPKC, which implements mutual authentication by exchanging signatures. Furthermore, a deployment of CLPKC in an intelligent substation is presented. We also evaluate the security properties of the scheme and analyze the end-to-end delays of secured services by combining theoretical calculation and simulation in this paper. The results indicate that the proposed scheme meets the requirements of security and Real-Time Performance of communications in intelligent substations.
S. Morris - One of the best experts on this subject based on the ideXlab platform.
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NOMS - RPM Real Time Performance management
NOMS 98 1998 IEEE Network Operations and Management Symposium, 1998Co-Authors: J. Seraj, A. Newcombe, S. Morris, P. Haraszti, B. FitzsimonsAbstract:Traditionally, Performance management of telecommunications networks has been undertaken on a Network Element (NE) basis, often in an uncoordinated manner and requiring sophisticated human expertise for relatively trivial tasks. However, as networks become increasingly diverse and complex, and the demands upon them increase, this approach is more and more inefficient. Additionally, the advent of distributed processing networks, such as mobile cellular, IN (Intelligent Networks) and TINA (Telecommunication Information Networking Architecture), means that local Performance management will no longer be sufficient and co-ordination of these activities across the network is now required. The problems with centralised Performance management of networks are the volume of data, the complexity of the network, and the resultant latencies in response Times to network problems, A Real Time Performance management system for telecommunications networks is described, which can form the basis of Real Time decentralised control of future telecommunications networks. The proposed Performance measurement system provides open interfaces for subscription to Real Time Performance information at varying degrees of abstraction, corresponding to the required management view. The measurement system takes an event-based approach to delivering firm Real Time Performance information. The measurement enables Real Time and near Real Time control systems to be decentralised within the management network, both at a local level and at a regional level. A hierarchical approach both reduces the volume and complexity of Performance information and facilitates the development of a "management by delegation" paradigm in the management network.
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RPM Real Time Performance management
NOMS 98 1998 IEEE Network Operations and Management Symposium, 1998Co-Authors: J. Seraj, A. Newcombe, S. Morris, P. Haraszti, B. FitzsimonsAbstract:Traditionally, Performance management of telecommunications networks has been undertaken on a Network Element (NE) basis, often in an uncoordinated manner and requiring sophisticated human expertise for relatively trivial tasks. However, as networks become increasingly diverse and complex, and the demands upon them increase, this approach is more and more inefficient. Additionally, the advent of distributed processing networks, such as mobile cellular, IN (Intelligent Networks) and TINA (Telecommunication Information Networking Architecture), means that local Performance management will no longer be sufficient and co-ordination of these activities across the network is now required. The problems with centralised Performance management of networks are the volume of data, the complexity of the network, and the resultant latencies in response Times to network problems, A Real Time Performance management system for telecommunications networks is described, which can form the basis of Real Time decentralised control of future telecommunications networks. The proposed Performance measurement system provides open interfaces for subscription to Real Time Performance information at varying degrees of abstraction, corresponding to the required management view. The measurement system takes an event-based approach to delivering firm Real Time Performance information. The measurement enables Real Time and near Real Time control systems to be decentralised within the management network, both at a local level and at a regional level. A hierarchical approach both reduces the volume and complexity of Performance information and facilitates the development of a "management by delegation" paradigm in the management network.
