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BROAD-BAND ISLAND INTERCONNECTION VIA SATELLITE - PERFORMANCE ANALYSIS FOR THE RACE-II CATALYST PROJECT

INTERNATIONAL JOURNAL OF SATELLITE communicationS 1994年第3期12卷 223-238页

作者： HADJITHEODOSIOU, MH KOMISARCZUK, P COAKLEY, F EVANS, BG SMYTHE, C Centre for Satellite Engineering Research University of Surrey Guildford GU2 5XH U.K. Obtained an M.A. in Electrical and Information Sciences from the University of Cambridge in 1989 and an M.S. in Electrical Engineering from the University of California Irvine in 1991. He is currently a Research Fellow at the Centre for Satellite Research University of Surrey U.K. His research interests include multiple access protocols for VSAT networks voice/data integration in low-bit-rate networks and the use of satellites for the provision of BISDN services. Obtained a B.Sc. in Pure and Applied Physics with Electronics in 1983 and an M.Sc. in Modern Electronics in 1984 from the University of Nottingham U.K. He was a project engineer on the Corporate Data Network for the Central Electricity Generating Board U.K. and then a senior lecturer in communication systems at the University of Greenwich UK. At present he is working on his Ph.D. at the Centre for Satellite Engineering Research (CSER) University of Surrey on the performance of communication systems. Has been Senior Lecturer in the Department of Electrical Engineering University of Surrey since 1984. She is the author (or joint author) of more than 80 research papers. Currently she teaches courses in Telecommunication Networks and Computer Architecture. Her research interests include on-board processing for satellites protocols and performance issues. Received the BSc. and Ph.D. degrees in Electrical Engineering and Microwave Systems from the University of Leeds in 1965/1968. He was British Telecom Lecturer-Reader in Telecommunications Systems at the University of Essex from 1969–1983. In 1983 he was appointed to the Alec Harley Reeves Chair of Information Systems Engineering at the University of Surrey and in 1990 became the first Director of the post-graduate centre for Satellite Engineering Research which houses some 100 researchers. In 1992 he was made a Fellow of the Royal Academy of Engineers in the U.K. and is a Fellow of IEE and a member of IEEE

The use of communication satellites as a possible way of offering broadband island interconnectivity appears to be a very attractive option, as it will enable the provision of an all-digital, transparent service to a number of ATM islands spanning a wide area, accommodating efficiently a variety of traffic demands. The CATALYST Project (RACE II/R2074) is an attempt to demonstrate the applicability and compatibility of satellite technology with the terrestrial BISDN. In this paper we present an overview of the project and focus on an initial study of the expected user performance through the CATALYST network. Our analysis is based upon mathematical and simulation models and describes the end-system to end-system transfer delay for given message lengths. The protocol profiles assume a mix of Novell NetWare and Network File System client/server architectures, which are supported by either the IEEE 802.3/Ethernet or fibre distributed data interface LANs, which are themselves linked via LAN/ATM/satellite interface units. Areas of further investigation, and the implication of our analysis on the actual network architecture, are discussed.

关键词： ASYNCHRONOUS TRANSFER MODE (ATM) BROAD-BAND ISDN SATELLITE communicationS

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PERFORMANCE OF A PRIORITIZED ON-BOARD BASEBAND SWITCH FOR A MULTISERVICE MULTIBEAM SATELLITE

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INTERNATIONAL JOURNAL OF SATELLITE communicationS 1994年第3期12卷 283-297页

作者： BOHM, S ELHAKEEM, AK HACHICHA, M Department of Electrical and Computer Engineering Concordia University 1455 De Maisonneuve Blvd. West Montreal H3A 1M8 Canada Was born in Montreal Canada on 14 September 1966. He received the B. Eng. degree in electrical engineering from Concordia University Montreal Canada in 1989. He is at present completing the M.A.Sc. degree in electrical engineering at Concordia University. (S'75–S'79–M'79–SM'86) received the Ph.D. degree from Southern Methodist University Dallas TX in 1979. He spent the next two years working as a Visiting Professor in Egypt after which he moved to Ottawa Canada in 1982. He assumed teaching and research positions in Carleton and Manitoba Univerities and later moved to Concordia University Montreal Canada in 1983 where he is now a Professor in the Electrical and Computer Engineering Department. He has published numerous papers in IEEE and international journals in the areas of spread spectrum and networking. He is a well-known expert in these areas and serves as a consultant to many companies. His current research interests include wide-band metropolitan networks switching architectures and performance of on-board multibeam satellites acquisitionless CDMA networks code distribution and orthogonalization of CDMA signals responsive congestion control for ATM-based networks ARQ techniques and investigation of the novel SUGAR CDMA systems in fading channels. Dr. Elhakeem is a Senior Member of the Canadian Electrical Engineering Society and Armed Forces Association. He has chaired numerous technical sessions in IEEE Conferences was the Technical Program Chairman for IEEE Montech 1986 Montreal Canada. Dr. Elhakeem is the key guest editor of theIEEE Journal of Selected Areas in Communicationsfor the May June issues 1993 covering CDMA networks. Advanced Technology & Networks VISTAR Telecommunications Inc. Ottawa Ontario K1G 3J4 Canada An Associate Director of Advanced Technology & Networks Group VISTAR Telecommunications Inc. Ottawa Canada. He is also an Adjunct Pr

In this paper, we study the performance of a prioritized on-board baseband switch in conjunction with a multibeam satellite handling integrated services. The services considered for the analysis include voice, video, file transfer and interactive data. The prioritized switch uses both input and output buffering, switch speed-up as well as a two-phase head-of-line resolution algorithm, in order to reduce the buffer loss while maintaining acceptable user delays. The minimum required buffer capacity and switch speed-up for each service in a prioritized environment are found under uniform traffic conditions. It is shown that under uniform traffic conditions, only minimal buffering and switch speed-up are needed even for the lowest priority users. The performance dependence on the switch size is also substantially reduced with head of line resolution and buffering even in a prioritized environment.

关键词： SWITCH ON-BOARD BASEBAND MULTIBEAM PRIORITIZED HEAD-OF-LINE UNIFORM LOAD SPEED-UP

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Evaluation of error recovery schemes for a high-speed packet switched network: link-by-link versus edge-to-edge schemes

Evaluation of error recovery schemes for a high-speed packet...

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IEEE Annual Joint Conference: INFOCOM, IEEE computer and communications Societies

作者： T. Suda N. Watanabe Department of Information and Computer Science University of California Irvine CA USA NTT Communication Networks Laboratories Musashino Tokyo Japan

An investigation is made of various error recovery schemes for a very-high-speed packet switched network. The schemes investigated are: (1) edge-to-edge recovery, whereby retransmission of erred packets only takes place between source and destination nodes, (2) link-by-link recovery, whereby retransmission only takes place between adjacent switching nodes, and (3) link-edge-combined recovery, using both link-by-link and edge-to-edge schemes. The performance measures are the distribution of transmission delay and error probability of packets across a network. To obtain these measures, the authors develop a tandem queuing network model with feedbacks, where each queue represents a protocol layer within a switching node rather than a switching node as a whole. Numerical results show that for a network with very-high-speed/low-error-rate channels, the edge-to-edge scheme gives the smallest packet transmission delay, while keeping the packet error probability sufficiently small. The only drawback of the edge-to-edge scheme is that it causes network saturation at smaller network traffic load than the older schemes.< >

关键词： Packet switching Protocols Peer to peer computing communication switching computer errors Error probability Routing Error correction High-speed networks computer science

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PERFORMANCE OF THE SHINPADS SERIAL DATA BUS FOR FRIGATE-CLASS SHIPS

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NAVAL ENGINEERS JOURNAL 1988年第4期100卷 191-199页

作者： KAYE, AR STARCHUK, GJ A. Roger Kaye:is a professor in the Department of Systems and Computer Engineering at Carleton University Ottawa Canada. His research interests are in computer-communication networks and expert systems for their management. He spent many years in both industrial and government research laboratories prior to joining Carleton. He holds the Ph.D. and M.Eng. degrees from Carleton and the B.Sc. (Eng.) from the University of London England. Gary J. Starchuk:received the B.Eng. degree in engineering management at the Royal Military College of Canada in 1973 the M.A.Sc. degree in management sciences from the University of Waterloo in 1979 and the M.Sc. degree in information and system science from Carleton University in 1987. He holds the rank of lieutenant commander in the Canadian Forces and is currently serving as a project manager in a major project.

The paper presents performance results for the SHINPADS serial data bus operating in the environment of a modern, frigate-class ship using a combination of point-to-point links for certain major applications systems and the shared, SHINPADS bus for others. The traffic model used is representative of experience in the design of new ships of this type. It is shown that the bus has adequate performance for the expected traffic load. In addition it is shown that, as traffic increases, delay problems will show up in the application processor environment before there is any significant degradation of the performance of the bus. The value of the provision of several classes of priority on the bus is also investigated.

关键词： DATA TRANSMISSION EQUIPMENT

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Analysis of polling systems

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Performance Evaluation 1985年第3期5卷 206-206页

作者： Hideaki Takagi Leonard Kleinrock Japan Science Institute / Communication Networks 5-19 Sanban-cho Chiyoda-ku Tokyo 102 Japan Computer Science Department University of California Los Angeles USA

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Synchronization of distributed simulation using broadcast algorithms

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computer networks (1976) 1980年第1期4卷 3-10页

作者： Kent Peacock, J Manning, Eric Wong, J.W Computer Communication Networks Group Department of Computer Science University of Waterloo Waterloo Ont. N2L 3G1 Canada

Simulation, particularly of networks of queues, is an application with a high degree of inherent parallelism, and is of considerable practical interest. We continue the analysis of synchronization methods for distributed simulation, defined by the taxonomy in our previous paper. Specifically, we develop algorithms for time-driven simulation using a network of processors. For most of the synchronization methods considered, each node k of an n-node network simulation cannot proceed directly with its part of a simulation. Rather, it must compute some function B_k(ν₁, ν₂, ..., ν_n), where ν_i is some value which must be obtained from node i. The value of ν_i at each node changes as the simulation progresses, and must be broadcast to every other node for the recomputation of the B-functions. In some cases, it is advantageous to compute the B-function in a distributed manner. Broadcast algorithms for such distributed computation are presented. Since the performance of a broadcast algorithm depends on the properties of the inter-process communication facility, we characterize some particular cases and give algorithms for each of them. © 1980.

关键词： broadcast distributed algorithms Distributed processing simulation synchronization

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Advances in Signal Processing and Intelligent Recognition Systems 1

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丛书名： Advances in Intelligent Systems and Computing

1000年

作者： Sabu M. Thampi Sri Krishnan Juan Manuel Corchado Rodriguez Swagatam Das Michal Wozniak Dhiya Al-Jumeily

ISBN: (数字)9783319679341

ISBN: (纸本)9783319679334

This Edited Volume gathers a selection of refereed and revised papers originally presented at the Third International Symposium on Signal Processing and Intelligent Recognition Systems (SIRS’17), held on September 13–16, 2017 in Manipal, India. The papers offer stimulating insights into biometrics, digital watermarking, recognition systems, image and video processing, signal and speech processing, pattern recognition, machine learning and knowledge-based systems. Taken together, they offer a valuable resource for all researchers and scientists engaged in the various fields of signal processing and related areas.

关键词： Computational Intelligence Signal, Image and Speech Processing Artificial Intelligence

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A Roadmap to Future Space Connectivity 1

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丛书名： Signals and communication Technology

1000年

作者： Claudio Sacchi Fabrizio Granelli Riccardo Bassoli Frank H. P. Fitzek Marina Ruggieri

ISBN: (数字)9783031307621

ISBN: (纸本)9783031307614;9783031307645

This book provides an overview of the latest R&D advancements in the field of ICT technologies inherent to a New Space vision. The book presents a system-level and technology-level description of future space networking and communications. The authors also expand the vision to interplanetary networks. The book spans hardware and software technologies for future space communication networks, also considering very modern paradigms like quantum technologies and Softwarization. In the book, the word “space” is intended in a wider sense than the usual “satellite communications”, including new and partially unexplored fields like quantum space communications, interplanetary communications, and extra-terrestrial Radio Access networks (RANs). The book includes applications including Internet of Space Things, Tactile Internet/Digital twins for Space and discusses future challenges like those involved by the concept of “sustainable Space”.

关键词： communications Engineering, networks Microwaves, RF and Optical Engineering Aerospace Technology and Astronautics

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NETWORKING 2010 1

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丛书名： Lecture Notes in computer science

1000年

作者： Mark Crovella Laura Marie Feeney Dan Rubenstein S. V. Raghavan

ISBN: (数字)9783642129636

ISBN: (纸本)9783642129629

This book constitutes the refereed proceedings of the 9th IFIP-TC6 Networking Conference, Networking 2010. Papers were solicited in three broad topic areas: applications and services, network technologies, and internet design. All papers were considered on their merits by a uni?ed Technical ProgramCommittee (TPC); there was no attempt to enforce a quota among topic areas. We believe the resulting program is an excellentrepresentationofthebreadthofrecentadvancesinnetworkingresearch. This year, the conference received 101 full paper submissions from 23 co- trieson?vecontinents,re?ectingastrongdiversityinthenetworkingcommunity. Similarly, the 92 members of the TPC are from 21 countries and include a mix of academic, industry, and governmental a?liations. The TPC members, aided by some 50 external reviewers, provided a total of 470 reviews and follow-up discussions totaling more than 200 messages. The ?nal selections were made at a TPC meeting hosted by Columbia University in New York City, with both in-person and remote participation. In total, authors of accepted papers have academic and industry a?liations in 15 countries. We ?nally selected 24papers for presentationduring the conference technical sessions. A small number of papers were assigned a shepherd from the TPC to assist in paper revision. These statistics represent an acceptance rate of just under 24%, comparable to that of previous years. The TPC also identi?ed several papers that re?ect particularly promising early results; these papers were selected for presentation as work-in-progress papers and are identi?ed as such in the proceedings.

关键词： computer communication networks Software Engineering/Programming and Operating Systems Information Systems Applications (incl. Internet) Algorithm Analysis and Problem Complexity Management of Computing and Information Systems Cryptology

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Internet of Things and Its Applications 1

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丛书名： Lecture Notes in Electrical Engineering

1000年

作者： Keshav Dahal Debasis Giri Sarmistha Neogy Subrata Dutta Sanjay Kumar

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