Voice/Data Integration Using Circuit Switched Networks

Harrington, E.

doi:10.1109/tcom.1980.1094743

Cited by 28 publications

(4 citation statements)

References 11 publications

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“…Initial studies on the performance of voice/data multiplexing systems assumed fixed duration time-division multiplexing frames in which time slots were distributed between voice and data packets. In this context, the multiplexing efficiency of voice and data has been analyzed using various approaches that involve moving frame boundaries between voice and data slots [48][49][50], separate queueing buffers for voice and data [51], encoder control for voice [52], application of circuit-switching concepts for both voice and data [53], and hybrid models of circuitswitched voice/packet-switched data [54]. Maglaris and Schwartz [55] describe a variable-frame multiplexer that admits long messages of variable length and single packets that arrive as a Poisson process.…”

Section: Voice and Data Multiplexersmentioning

confidence: 99%

Statistical multiplexing

1982

Microprocessors and Microsystems

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Section: Voice and Data Multiplexersmentioning

confidence: 99%

Statistical multiplexing

1982

Microprocessors and Microsystems

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“…The available options for providing real-time services in a wide-area context are circuit switching, fast packet switching, and combinations of these two techniques. The former is not particularly convenient when the traffic includes (as we expect it will in most cases) a large data/ text component [7]. Fast packet switching (for example, ATM) is better suited to the type of traffic we are envisioning; however, to our knowledge and in its formulations to date, it does not guarantee the low delays it can provide.…”

Section: Introduction Eal-time Computer-computer Communication Bymentioning

confidence: 99%

A scheme for real-time channel establishment in wide-area networks

Ferrari

Verma

1990

IEEE J. Select. Areas Commun.

886

371

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Multimedia communication involving digital audio and/or digital video has rather strict delay requirements. A real-time channel is defined in this paper as a simplex connection between a source and a destination characterized by parameters representing the performance requirements of the client. A real-time service is capable of creating real-time channels on demand and guaranteeing their performance. These guarantees often take the form of lower bounds on the bandwidth allocated to a channel and upper hounds on the delays to he experienced by a packet on the channel. In this paper, we study the feasibility of providing real-time services on a packet-switched store-and-forward wide-area network with general topology. We describe a scheme for the establishment of channels with deterministic or statistical delay hounds, and present the results of the simulation experiments we ran to evaluate it. The results are encouraging: our approach satisfies the guarantees even in worst case situations, uses the network's resources to a fair extent, and efficiently handles channels with a variety of offered load and burstiness characteristics. Also, the packet transmission overhead is quite low, and the channel establishment overhead is small enough to be acceptable in most practical cases.

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“…An approach that can be used in wide-area networks as well as in LANs is circuit switching: dedicating a circuit of fixed bandwidth to each connection for the entire duration of the connection provides bounded delay. However, circuit switching is not the most convenient technique for data communication [Harr80]. Hence, schemes that combine packet and circuit switching features in various ways have been proposed for integrated voice/data networks: fast circuit switching, burst switching, hybrid switching, and fast packet switching.…”

Section: Introductionmentioning

confidence: 99%

Guaranteeing Performance for Real-Time Communication in Wide-Area Networks

Ferrari¹

1988

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The increasing importance of distributed multimedia applications and the emergence of user interfaces based on digital audio and digital video will soon require that computer communication networks offer real-time services. This paper argues that the feasibility of providing performance guarantees in a wide-area network should be investigated, and describes a possible approach. We present a model of the network to be studied, and discuss its generality, as well as the presumable limits to its validity in the future. We also give a careful formulation of the problem, including a precise definition of the guarantees to be provided and a provably correct scheme for the establishment of real-time connections with deterministic, statistical, and best-effort delay bounds.Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

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Voice/Data Integration Using Circuit Switched Networks

Cited by 28 publications

References 11 publications

Statistical multiplexing

Statistical multiplexing

A scheme for real-time channel establishment in wide-area networks

Guaranteeing Performance for Real-Time Communication in Wide-Area Networks

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