Results 161 to 170 of about 29,580 (198)

Optical packet switches: a comparison of designs

Proceedings IEEE International Conference on Networks 2000 (ICON 2000). Networking Trends and Challenges in the New Millennium, 2002
Many optical packet switches have been proposed to facilitate the widespread deployment of broadband integrated services digital networks. Although optical packet switches offer data rate and format transparency, and high switching speed, their performance strongly depends on optical device technology.
Meow Chiow Chia, David K. Hunter, Ivan Andonovic, Peter Ball, Ian Wright   +4 more
openaire   +1 more source

Optical buffering and switching in packet switched optical networks

IEEE AFRICON. 6th Africon Conference in Africa,, 2003
Optical packet switching provides the advantages of transparency and the efficient use of the bandwidth provided by WDM on optical transport networks. There are however various impediments to deploying this technology in an all-optical fashion: optical buffering is inefficient, and all-optical signal processing has not been implemented in networks.
R. Geldenhuys, F. Leuschner
openaire   +1 more source

TCP Performance in Optical Packet-switched Networks

Photonic Network Communications, 2006
Optical packet assembly is a key function to support inter-working between TCP/IP networks and optical packet-switched networks. It is characterized by the assembly delay and by the segment aggregation needed to form an optical packet. These counter-balancing aspects depend on several environment variables, such as the TCP parameters, the access link ...
RAFFAELLI, CARLA, ZAFFONI, PAOLO
openaire   +2 more sources

Buffering in optical packet switches

Journal of Lightwave Technology, 1998
This paper consists of a categorization of optical buffering strategies for optical packet switches, and a comparison of the performance of these strategies both with respect to packet loss/delay and bit error rate (BER) performance. Issues surrounding optical buffer implementation are discussed, and representative architectures are introduced under ...
D.K. Hunter, M.C. Chia, I. Andonovic
openaire   +1 more source

MPLS over Optical Packet Switching

2001
This paper deals with the problem of connection to wavelength assignment in an MPLS optical packet switched network with DWDM links. The need to adopt dynamic allocation of connections to wavelengths is outlined to avoid congestion and dynamic wavelength assignment algorithms are proposed.
Franco Callegati, Walter Cerroni, Giorgio Corazza, Carla Raffaelli   +3 more
openaire   +1 more source

Design of a Multistage Optical Packet Switch

European Transactions on Telecommunications, 2000
AbstractOptical packet switching is considered as a means to achieve high speed networking in future optical multi‐service networks, Optical switches of limited size are feasible with present‐day photonic technology, so solutions for the design and implementation of large switches are proposed here.
openaire   +1 more source

QoS differentiation in optical packet-switched networks

Computer Communications, 2006
This paper deals with the problem of service differentiation in an optical packet-switched backbone. A QoS-aware network function based on different routing and contention resolution strategies for different classes of service is proposed and analyzed. Contention resolution is performed by using both wavelength and time domains and QoS differentiation ...
CALLEGATI, FRANCO, CERRONI, WALTER, RAFFAELLI, CARLA, SAVI, MICHELE   +3 more
openaire   +1 more source

Optical switching technologies for fast optical packet switching

Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551), 2003
A survey of optical switching technologies being candidates for an optical packet switched (OPS) network is presented. Switching time range for optical switching fabrics is found through analysis. In light of this, and based on reported switch devices, switching technologies are identified as candidates for OPS.
openaire   +1 more source

The 'staggering switch': an 'almost-all' optical packet switch

[Conference Record] GLOBECOM '92 - Communications for Global Users: IEEE, 1992
The performance of an almost-all-optical packet switch is evaluated. The switch architecture is based on two rearrangeably nonblocking stages interconnected by optical delay lines with different amounts of delay. Thus, the switch design does not rely on recirculating loops for optical storage implementation. The probability of loss is investigated as a
openaire   +1 more source

Optical packet switching networks

SPIE Proceedings, 2005
Optical packet switching techniques have been studied for many years and many feasibility experiments have demonstrated the viability of this technology at different areas of the network. In this paper an analysis of the optical technology potential in different network areas: metro access, metro core and backbone, is carried out.
openaire   +1 more source