STWnet: a high bandwidth space-time-wavelength multiplexed optical switching network

AbstractThis paper presents a system proposal for a self-organized cellular network, which is based on the MIMO-OFDM transmission technique. Multicarrier transmission, combined with appropriate beamforming concepts, yields high bandwidth-efficiency and shows a robust behavior in multipath radio channels. Moreover, it provides a fine and tuneable granularity of space-time-frequency resources. Using a TDD approach and interference measurements in each cell, the Base Stations (BSs) decide autonomously which of the space-time-frequency resource blocks are allocated to the Mobile Terminals (MTs) in the cell, in order to fulfil certain Quality of Service (QoS) parameters. Since a synchronized Single Frequency Network (SFN), i.e., a re-use factor of one is applied, the resource blocks can be shared adaptively and flexibly among the cells, which is very advantageous in the case of a non-uniform MT distribution.

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A new wide-sense nonblocking optical switching network

2007 10th International Conference on Computer and Information Technology ◽

10.1109/iccitechn.2007.4579392 ◽

2007 ◽

Author(s):

Md. Mahmudur Rahman ◽

Md. Afzal Hossan ◽

M. M. Hafizur Rahman ◽

Susumu Horiguchi

Keyword(s):

Optical Switching ◽

Switching Network ◽

Wide Sense

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Blocking probability of a high-speed optical switching network in presence of component failures

HPSR. 2005 Workshop on High Performance Switching and Routing, 2005. ◽

10.1109/hpsr.2005.1503270 ◽

2005 ◽

Author(s):

Xiaohong Jiang ◽

Pin-Han Ho ◽

Md.M. Khandker ◽

S. Horiguchi

Keyword(s):

High Speed ◽

Optical Switching ◽

Blocking Probability ◽

Switching Network ◽

Component Failures

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Optical beam-shifter module with high extinction ratio for 1024-input-port optical-switching network

10.1117/12.147926 ◽

1993 ◽

Cited By ~ 6

Author(s):

Seiichi Shirai ◽

Kazuo Kimura ◽

Yukio Irita ◽

Noboru Naito ◽

Tadashi Serikawa ◽

...

Keyword(s):

Optical Switching ◽

Extinction Ratio ◽

Optical Beam ◽

Input Port ◽

Switching Network ◽

High Extinction Ratio

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Finite/Infinite Queueing Models Performance Analysis in Optical Switching Network Nodes

International Journal of Scientific Research in Computer Science Engineering and Information Technology ◽

10.32628/cseit195128 ◽

2019 ◽

pp. 163-170

Keyword(s):

Performance Analysis ◽

Optical Switching ◽

Optical Switch ◽

Main Tool ◽

Switching Network ◽

Queueing Models ◽

Switching Networks ◽

Network Nodes ◽

And Performance ◽

Optical Switching Networks

In optical switching networks, optical information (packets/bursts) that are forwarded from an optical switch to another through the network could entering a queue of a certain length in each node and may be waiting inside this node before it will be transmitted to the next node. Various queueing models have been widely applied as the main tool in optical switching networks for modeling and performance evaluation analysis of the switching nodes. In this paper, studying the performance analysis of an optical switching node is discussed at Finite and Infinite queueing models to have the optimum queueing model for optical core node switch design. The waiting delay time, the average expected number of optical packets and the loss probability of packets in the optical switch are estimated at variable traffic loads and different wavelength channels.

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