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Communications, IEEE Transactions on

Issue 6 • Date June 1982

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Displaying Results 1 - 25 of 26
  • [Front cover and table of contents]

    Publication Year: 1982 , Page(s): 0
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    Freely Available from IEEE
  • Guest Editors' Prologue - Scanning the Issue

    Publication Year: 1982 , Page(s): 1265 - 1275
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1487 KB)  

    First Page of the Article
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  • [Back cover]

    Publication Year: 1982 , Page(s): 0
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    Freely Available from IEEE
  • Alternative Strategies for Managing Virtual Circuit Failure and Recovery in Local Area Computer Networks

    Publication Year: 1982 , Page(s): 1450 - 1454
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (656 KB)  

    A virtual circuit (or path) is a full-duplex logical connection between two processes. Two varieties of idealized virtual circuits that differ in their reliability characteristics can be distinguished: simple virtual circuits and reliable virtual circuits. Simple virtual circuits have the basic characteristic that data are transmitted across the circuit with no errors as long as the circuit is ope... View full abstract»

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  • Providing Multiple-Channel Communication Using the Experimental Digital Switch

    Publication Year: 1982 , Page(s): 1409 - 1416
    Cited by:  Papers (1)  |  Patents (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (840 KB)  

    This report describes the functional characteristics of a circuit-switched network which is capable of providing data communication paths as well as voice channels. In the system described, the circuit switch may be shared in order to provide multiple independently switched paths through the network. Unlike a conventional circuit switch, this sharing permits only a fraction of the switching capaci... View full abstract»

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  • A Software Development System for Reliable Applications

    Publication Year: 1982 , Page(s): 1363 - 1368
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (704 KB)  

    This paper describes a Software Development System (SDS) that was implemented at Bell Laboratories to support the development of software for Electronic Switching Systems (ESS). The SDS supports multiple programmers and multiple releases. It permits incremental development in a timely and efficient manner while maintaining project management control and tracking capabilities. Software testing and ... View full abstract»

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  • Rationale for a Queueable Object Distributed Interprocess Communication System

    Publication Year: 1982 , Page(s): 1417 - 1426
    Cited by:  Patents (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1352 KB)  

    We consider the problem of designing an interprocess communication system usable as a base for writing real-time operating and applications systems in a distributed environment where processes may be connected by anything from shared virtual memory to radios. By requiring an interface that minimizes the code an application program must devote to communications, a facility of substantially higher l... View full abstract»

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  • Implementation of the Calling Card Service Capability--Application of a Software Methodology

    Publication Year: 1982 , Page(s): 1297 - 1303
    Cited by:  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (840 KB)  

    Much discussion of software methodologies has appeared in the literature in recent years. Many new techniques for software design and implementation have been presented. The real test of any approach is in its application. The purpose of this paper is to discuss the software development methodology used within the Network Operator Services Laboratory of Bell Laboratories. This methodology has evol... View full abstract»

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  • Experimental Multiple-Channel Circuit-Switched Communications

    Publication Year: 1982 , Page(s): 1399 - 1409
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1264 KB)  

    A research model of a system for multiple-channel subrate circuit-switched digital communications is described. Three Components of a local communications system (residential or business) are the switching machine, the line, and the user's equipment. Each is briefly described and overall system operation is presented. The user's communications controller, which interfaces the digital line to the u... View full abstract»

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  • A New Software Architecture for Switching Systems

    Publication Year: 1982 , Page(s): 1281 - 1289
    Cited by:  Papers (2)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (872 KB)  

    Electronic switching systems were introduced in the mid1960's, and have since undergone constant modifications to provide new features, expand into new applications, and adapt to new hardware technologies. The increasing costs of software development have led to the need to reexamine the design concepts of present systems and define more cost-effective architectures. The specifications and derivat... View full abstract»

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  • MML: CCITT Man-Machine Language

    Publication Year: 1982 , Page(s): 1329 - 1336
    Cited by:  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (720 KB)  

    The International Telegraph and Telephone Consultative Committee (CCITT) has produced Recommendations for a ManMachine Language (MML) to facilitate the operation and maintenance of stored program controlled (SPC) switching systems in telecommunications networks. As electromechanical machines are replaced by SPC systems linked by high-speed communication facilities, the centralization of operations... View full abstract»

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  • CCITT Languages for SPC Switching Systems

    Publication Year: 1982 , Page(s): 1304 - 1309
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (656 KB)  

    CCITT is one of the two consultative committees of the International Telecommunications Union. This paper describes in a general manner the procedures adopted by the CCITT in the process of developing standards for telegraphy and telephony. These standards are known as CCITT Recommendations. In particular, it covers the development, status and prospects of the CCITT Recommendations for three langu... View full abstract»

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  • Writing Requirements for Interfaces Between Computers

    Publication Year: 1982 , Page(s): 1276 - 1280
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (640 KB)  

    This paper describes the form of an interface requirements document and a design method to produce it. Document and design are coupled by embedding the right questions in the document. The completed document answers the questions. Work described in this paper has grown out of practical experience and by reflecting on the general nature of requirements. The paper contains a design method for the co... View full abstract»

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  • The Software Architecture for a Large Telephone Switch

    Publication Year: 1982 , Page(s): 1369 - 1378
    Cited by:  Papers (3)  |  Patents (15)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1296 KB)  

    This paper describes the software and the software structure used in a family of high-capacity digital telephone switches. The call processing task is complex, and has great diversity. It must support existing and future features, including some not yet envisioned. The software must also provide man-machine interfaces, maintain the office database, and offer automatic recovery from hardware and so... View full abstract»

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  • Protocol Traps in Computer Networks--A Catalog

    Publication Year: 1982 , Page(s): 1434 - 1449
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1840 KB)  

    This paper is a compendium of potential protocol "traps" compiled from relevant literature on computer networks. The diversity of deadlocks and message ping-ponging conditions that can arise in computer networks is presented together with associated methods of solution. View full abstract»

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  • A Composite Software Design for the Electronic Switching System

    Publication Year: 1982 , Page(s): 1290 - 1296
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (688 KB)  

    This paper describes a process to achieve modular software for switching systems in a way similar to hardware design manufacturing the components first, then constructing a system using the components needed. To reduce the software maintenance cost in the case of changing switching functions, the following factors were studied: 1) modularity corresponding to divided switching functions; 2) interfa... View full abstract»

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  • CHILL--The Standard Language for Programming SPC Systems

    Publication Year: 1982 , Page(s): 1318 - 1328
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (840 KB)  

    SPC telecommunication systems have proved to contain some of the largest and most complex pieces of software ever constructed. To master this complexity requires the use of powerful tools. The CCITT High-Level programming Language-CHILL-is one such tool that will contribute to improving the quality of SPC systems in the 1980's and beyond. At the CCITT Plenary Assembly in November 1980, CHILL was a... View full abstract»

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  • No. 5 ESS Maintenance Software

    Publication Year: 1982 , Page(s): 1386 - 1392
    Cited by:  Papers (7)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (720 KB)  

    No. 5 ESS is a stored program controlled digital switching system using distributed processing to provide smooth growth across the entire central office line range. The No. 5 ESS maintenance hardware and software is designed to meet all Bell System reliability and maintenance requirements. New approaches for maintenance software design have been required to accomplish this in a distributed process... View full abstract»

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  • Software Structure of No. 5 ESS--A Distributed Telephone Switching System

    Publication Year: 1982 , Page(s): 1379 - 1385
    Cited by:  Papers (3)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (840 KB)  

    Most stored program controlled telephone switching systems are designed with centralized control architectures. Evolving processor technology and requirements of smooth growth over a wide size range have led system designers to take advantage of distributed processing architectures. This paper provides a conceptual framework for software partitioning on a distributed stored-program controlled swit... View full abstract»

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  • Packet Switching in the MICRONET Network Computer

    Publication Year: 1982 , Page(s): 1426 - 1433
    Cited by:  Papers (2)  |  Patents (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (888 KB)  

    Packet switching is a communication technology which has been used extensively in geographically distributed computer networks. It is also applicable to the communication subnetworks of compact multimicrocomputers known as network computers. This paper describes the use of the language Concurrent Pascal to build a packet-switching subsystem for the MICRONET network of DEC LSI-11 microcomputers. Ex... View full abstract»

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  • SL1 Language--A Specification and Design Tool for Switching Systems Software Development

    Publication Year: 1982 , Page(s): 1356 - 1362
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (712 KB)  

    The paper presents a new programming language-the SL1 finite-state automata specification and design language-designed as a development tool for the Iskra 2000 multimicroprocessor telephone exchange software system [4]. SL1 is a concise and simple language used for the specification and design of finite-state automata and for the generation of the corresponding tables. The language is modular and ... View full abstract»

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  • EWSD, A Real-Time Communication System with High-Level Language Software

    Publication Year: 1982 , Page(s): 1337 - 1342
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (672 KB)  

    The wide range of applications and requirements and the increasing software size in communication systems encourage the use of high-level programming languages. For SPC telephone switching systems, CCITT recommends the language CHILL. One of the first public switching systems to use CHILL is EWSD, developed by Siemens for the world market. The hardware architecture of EWSD, being the basis for res... View full abstract»

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  • A Meta-Implementation for Systems Network Architecture

    Publication Year: 1982 , Page(s): 1348 - 1355
    Cited by:  Papers (5)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (816 KB)  

    IBM's Systems Network Architecture (SNA) is formally defined by a meta-implementation program written in the Format and Protocol Language (FAPL). This paper describes the structure of the SNA meta-implementation and the development of FAPL. The most interesting aspect of the meta-implementation is that the architecture specification of SNA is itself machine executable. This property leads to a num... View full abstract»

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  • Developments in the SL-10 Packet Switch: Resource, File, and Software Loading Management

    Publication Year: 1982 , Page(s): 1393 - 1398
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (760 KB)  

    The Northern Telecom SL-10 Packet Switching System is steadily enhanced to provide better access services for users. Equally important to them, but less visible, are enhancements to improve availability and increase throughput. To this end, intelligent peripheral devices, such as storage controllers and line servers, have been added to the Switch and new strategies, especially for software loading... View full abstract»

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  • SDL--CCITT Specification and Description Language

    Publication Year: 1982 , Page(s): 1310 - 1318
    Cited by:  Papers (12)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (840 KB)  

    The CCITT Specification and Description Language (SDL) became a CCITT recommendation in 1976, and a refined version was published by CCITT in 1980. This paper presents the background and history of SDL, and its relation to the other languages recommended by CCITT. SDL is mainly a language to specify and describe the logic of functional processes in a fashion independent of implementation technique... View full abstract»

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Aims & Scope

IEEE Transactions on Communications focuses on all telecommunications including telephone, telegraphy, facsimile, and point-to-point television by electromagnetic propagation.

 

 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Robert Schober
University of British Columbia