Results 351 to 360 of about 355,925 (390)

Multiplane optical fabrics for Terabit packet switches

2008 International Conference on Optical Network Design and Modeling, 2008
This paper considers the use of optical fabrics to interconnect linecards in Terabit packet switches and routers, in order to overcome some of the limitations of current electronic realizations. In a previous paper [1] we considered WDM passive optical interconnection architectures that exploited a broadcast-and-select approach and wavelength agility ...
GAUDINO, ROBERTO, GAVILANES CASTILLO, GUIDO ALEJANDRO, NERI, Fabio, FINOCHIETTO J. M.   +3 more
openaire   +3 more sources

Buffering controls for IP packets in optical packet switching

9th Asia-Pacific Conference on Communications (IEEE Cat. No.03EX732), 2004
This paper investigates several buffering schemes for variable IP packets length in optical packet switching (OPS). Three new schemes with sorting abilities according to the packet's length as well as the capability of finding the minimum buffer occupancy are introduced in order to compare with the common round-robin scheme.
Kenzo Takahashi, Choo Peng Tan, Andy Lock Yen Low, A. H. You, Su Fong Chien   +4 more
openaire   +2 more sources

Impacts of packet filling in an optical packet switching architecture

Advanced Industrial Conference on Telecommunications/Service Assurance with Partial and Intermittent Resources Conference/E-Learning on Telecommunications Workshop (AICT/SAPIR/ELETE'05), 2005
Increase in network traffic and emergence of a variety of applications requiring different QoS necessitate scalable and efficient resource utilization. An appealing solution for backbone networks is the optical packet switching architecture. However technological constraints prevent the deployment of such all-optical solutions.
T. Atmaca, F. Haciomeroglu
openaire   +2 more sources

All-optical signal processing for optical packet switching [Invited]

Journal of Optical Networking, 2004
We present three optical signal processing functional blocks that enable 1×N optical packet switching. An ultrafast asynchronous multioutput all-optical header processor is demonstrated with a terahertz optical asymmetric demultiplexer in combination with a header preprocessor.
MT Martin Hill, R. Geldenhuys, Frans Huijskens, Y Yong Liu, Nicola Calabretta, GD Giok-Djan Khoe, Hjs Harm Dorren   +6 more
openaire   +3 more sources

Standardization of optical packet switching with many-wavelength packets

2008 First ITU-T Kaleidoscope Academic Conference - Innovations in NGN: Future Network and Services, 2008
A many-wavelength packet is a packet simultaneously encoded over many-wavelengths occupying wide bandwidth, say, 1Tbps. Many-wavelength packets are switched and buffered with wide band devices, fully exploiting wide bandwidth of optics to achieve future packet-based, ultra-high speed transport networks.
T. Morioka, M. Ohta, H. Harai
openaire   +2 more sources

Markovian Analysis of a Synchronous Optical Packet Switch

2009
We study switch architectures applicable to synchronous fixed-length optical packet networks in order to compare their performance in terms of packet loss ratio (PLR). We propose analytical models of these switches representing them as discrete time Markov chains and we solve them for incoming traffic with varying statistical properties.
Tomasik, Joanna, Kotuliak, Ivan
openaire   +3 more sources

Packet scheduling in a low latency optical packet switch

2010 International Conference on High Performance Switching and Routing, 2010
In this paper, we study packet scheduling in the OpCut switch, a recently proposed optical switching architecture that can be adopted for high-performance parallel computers. The key feature of the OpCut switch is that it allows packets to cut-through the switch whenever possible, such that packets experience minimum delay.
Zhenghao Zhang, Yuanyuan Yang, Lin Liu
openaire   +2 more sources

Influence of packet scheduling algorithms on optical packet switch

SPIE Proceedings, 2005
This paper focuses on the problem of buffering performance optimization for optical packet switch with shared WDM (Wavelength Division Multiplexing) optical buffers. For this purpose, several packet scheduling algorithms are proposed to make full use of buffering resources.
Guolong Zhu, Junjie Yang, Junjie Li, Qingji Zeng, Tong Ye   +4 more
openaire   +2 more sources

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   +2 more sources

On Traffic Allocations in Optical Packet Switches

IEEE Journal on Selected Areas in Communications, 2007
In this paper, we study the impacts of traffic allocations on the performance of optical packet switches (OPS). In particular, two different cases are investigated where traffic loads are distributed over different (i) time slots (time dimension); and (ii) output ports (space dimension), respectively.
Gaoxi Xiao, Hooshang Ghafouri-Shiraz, Yi Li   +2 more
openaire   +2 more sources