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M. De Prycker

Bio: M. De Prycker is an academic researcher from Alcatel-Lucent. The author has contributed to research in topics: Asynchronous Transfer Mode & Broadband networks. The author has an hindex of 6, co-authored 11 publications receiving 186 citations.

Papers
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Journal ArticleDOI
TL;DR: A switching network which is service independent and able to transport services of any bit rate, based on the fast packet switching concept, and the path select is not centrally controlled, but gradually performed as the control packet is passing through the switching network.
Abstract: This paper describes a switching network which is service independent and able to transport services of any bit rate, based on the fast packet switching concept. The control of the switching network is completely distributed; the path select is not centrally controlled, but gradually performed as the control packet is passing through the switching network. The switching network is a multistage network constructed with independent switching elements. The self-routing principle is applied. The load control of the different links between the switching elements in the network is provided by a static load control mechanism, applied to the logical connections granted on these links. Logical connections are accepted or rejected according to the already present load on each link. Possible overload caused by bursty traffic is solved by buffers within the switching elements. Simulation results are discussed, both for the static and dynamic behavior of the exchange. For both simulations, a large mix of different services is evaluated and conclusions are described.

51 citations

Journal ArticleDOI
TL;DR: The evolution of public telecommunication networks toward broadband integrated services digital networks (B-ISDNs) is presented and it is shown that the service offered by the ATM layer in the B-IS DN protocol reference model is equivalent to the service offering by the OSI physical layer.
Abstract: The evolution of public telecommunication networks toward broadband integrated services digital networks (B-ISDNs) is presented. The asynchronous transfer mode (ATM), which supports B-ISDNs, and the B-ISDN protocol reference model are discussed. It is shown that the service offered by the ATM layer in the B-ISDN protocol reference model is equivalent to the service offered by the OSI physical layer. It is also shown that the service offered by the ATM adaptation layer (AAL) type 3/4 is similar to an OSI data link service. The emergence of the metropolitan area network (MAN) standard as an intermediate support for broadband services and the similarities between the DQDB MAC and the AAL type 3/4 in its connectionless mode are discussed. >

42 citations

Journal ArticleDOI
M. De Prycker1
TL;DR: A flexible broadband signaling capable of handling all sorts of manipulations in a multimedia environment is described and is shown to be applicable to distributive digital TV.
Abstract: The different applications for which ATM broadband networks can be used are discussed. With regard to the ATM layer, the CCITT has standardized two kinds of virtual connections: virtual channel connections (VCCs) and virtual path connections (VPCs), where a VPC can be considered as an aggregate of VCCs. It is shown that two large groups of applications can be supported using either the VPC or VCC concept. In the first range of applications, only semipermanent VPC connections are supported. In the second, fully on demand VCC connections are offered to the subscribers. A flexible broadband signaling capable of handling all sorts of manipulations in a multimedia environment is described. The signaling is shown to be applicable to distributive digital TV. >

26 citations

Journal ArticleDOI
TL;DR: The author describes the options and parameters which have been selected for a Belgian experiment planned in the early 1990s, including fixed or variable packet length, the optimal packetlength, transmission and switching speed, and the number of lower-layer capabilities.
Abstract: The definition of a system requires the selection of a number of basic options. PTM (packet transfer mode) is a generic concept grouping a number of similar techniques which enable very flexible switching and transmission. The author describes the options and parameters which have been selected for a Belgian experiment planned in the early 1990s. Discussed are the following aspects: ATD (asynchronous time division) versus FPS (fast packet switching), including fixed or variable packet length, the optimal packet length, transmission and switching speed, and the number of lower-layer capabilities. >

23 citations

Proceedings ArticleDOI
28 May 1990
TL;DR: In this article, the authors describe the architecture of the transport net work in the local exchange (LEX) and the Subscriber group equipment (SGE) to be implemented for the Belgian broadband experiment.
Abstract: This paper describes the architecture of the transport net work in the local exchange (LEX) and the Subscriber group equipment (SGE) to be implemented for the Belgian broadband experiment. The functional and physical architecture of the LEX and the SGE will be described in this paper. Resulting from the requirement of maximum integration of communicative and distribution services, a connection-oriented switching fabric permitting tree structured multipoint connections has been defined; connection establishment protocols as well as maintenance facilities are described. Although developed within the frame of an experiment, the defined architecture and subsystems may well form the basis of a larger scale B-ISDN field trial.

18 citations


Cited by
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Journal ArticleDOI
TL;DR: An architecture is presented for a high-speed cellular radio access network based on ATM transport technology which avoids the need to involve the network call processor for every cell handoff attempt and which can readily support a very high rate of handoffs.
Abstract: An architecture is presented for a high-speed cellular radio access network based on ATM transport technology. Central to this approach is a new concept known as the virtual connection tree which avoids the need to involve the network call processor for every cell handoff attempt. Such an approach can readily support a very high rate of handoffs, thereby enabling use of physically small radio cells to provide very high system capacity, but may occasionally cause the volume of traffic to be handled by one cell site to exceed that cell site's capacity. A simple analytical methodology is developed which can be used for admission control, the purpose of which is to limit the number of in-progress calls such that two new quality of service metrics (overload probability and average time in overload) can be kept suitably low. Finally, a general framework is presented for overall system organization and signaling. >

488 citations

Journal ArticleDOI
Hamid Ahmadi1, W.E. Denzel1
TL;DR: A survey of high-performance switch fabric architectures which incorporate fast packet switching as their underlying switching technique to handle various traffic types is presented.
Abstract: A survey of high-performance switch fabric architectures which incorporate fast packet switching as their underlying switching technique to handle various traffic types is presented. A descriptive overview of the major activities in this rapidly evolving field of telecommunications is given. The switch fabrics are classified into the following categories: banyan and buffered banyan-based fabrics, sort-banyan-based fabrics fabrics with disjoint-path topology and output queuing, crossbar-based fabrics, time division fabrics with common packet memory, and fabrics with shared medium. >

407 citations

Journal ArticleDOI
TL;DR: The transfer mode chosen by the CCITT Study Group XVIII Task Group on ISDN Broadband Aspects as the basis of broadband ISDN is called the asynchronous transfer mode (ATM) as discussed by the authors.
Abstract: The transfer mode chosen by the CCITT Study Group XVIII Task Group on ISDN Broadband Aspects as the basis of broadband ISDN is called the asynchronous transfer mode (ATM). ATM is a high-bandwidth, low-delay, packetlike switching and multiplexing technique. It is essentially a connection-oriented technique, although it is envisioned as a basis for supporting all services, connectionless as well as connection-oriented. The basic transfer mode concepts are explained. The limits of synchronous transfer mode (ATM) are discussed and reasons for choosing ATM over STM are given. The main technical issues having an impact on the ATM specifications are discussed. >

251 citations

Patent
20 May 1998
TL;DR: In this paper, the authors present a method, system, and apparatus for providing communication control, which includes a method in which signaling is processed externally to a switch before it is applied by the network elements.
Abstract: The present invention includes a method, system, and apparatus for providing communication control. The invention includes a method in which signaling is processed externally to a switch before it is applied by the network elements. The processor is able to select network characteristics and signal the network elements based the selections. A network employing the processing method is also included, as well as a signaling system that employs the processing method.

206 citations

Journal ArticleDOI
TL;DR: This paper presents a descriptive survey of ATM switch architectures, with emphasis on electronic space-division point-to-point switches.
Abstract: For reasons of economy and flexibility, BISDN (Broadband Integrated Services Digital Network) is expected to replace existing application-oriented communication networks. ATM (Asynchronous Transfer Mode) is a high-speed packet-switching technique that has emerged as the most promising technology for BISDN. Since early 1980s, a large number of architectures have been proposed for ATM switching. In this paper, we present a descriptive survey of ATM switch architectures, with emphasis on electronic space-division point-to-point switches.

195 citations