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Method for solving link configuration and wavelength allocation competed in OBS by using parallel light fiber

A technology of link structure and wavelength, applied in the field of all-optical communication

Inactive Publication Date: 2007-12-26
PEKING UNIV
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Problems solved by technology

[0006] In view of the above-mentioned analysis of the advantages and disadvantages of the current burst data packet competition resolution mechanism, the purpose of the present invention is to provide a new burst data packet competition resolution mechanism for all-optical communication systems—a method for solving optical bursts using parallel optical fibers. Link Structure and Corresponding Wavelength Allocation Method for Burst Data Packet Competition in Sending and Switching

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  • Method for solving link configuration and wavelength allocation competed in OBS by using parallel light fiber
  • Method for solving link configuration and wavelength allocation competed in OBS by using parallel light fiber

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings, but the scope of the present invention is not limited in any way.

[0024] 1. Simplified structural block diagram

[0025] The invention proposes a simplified structural block diagram of using parallel communication optical fibers to solve the competition of burst data packets in optical burst switching. As shown in Figure 2, the parallel optical fiber link in the figure is composed of two communication optical fibers of the same attribute plus joints connected to nodes at both ends of the optical fibers. The joints are composed of optical wavelength division multiplexers / demultiplexers, high-speed optical Fiber delay lines (FDLs) etc. The wavelength division multiplexing (WDM) link connecting OBS node i and node i+1 is composed of two parallel optical fibers with the same attribute, that is, parallel optical fiber 0 and parallel optical fiber 1 in FIG. 2 . The optic...

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Abstract

A method of utilizing parallel optical fiber to solve link structure and relevant wavelength distribution both being competed by data packet in burst exchange includes forming parallel optical fiber link by two parallel optical fibers in the same attribute and connector, designing relevant wavelength distribution means for formed link, using each optical fiber to transmit the same wavelength and using one of them to transmit control information, carrying out wavelength packet on the other wavelength and distributing wavelength in each packet wavelength as per traditional means.

Description

technical field [0001] The present invention relates to the technical field of all-optical communication, in particular to a link structure for solving burst data packet competition in an optical burst switching network by using parallel optical fibers in an optical burst switching (OBS) network with no optical buffer or only a small amount of optical buffer. Wavelength Assignment Method. Background technique [0002] Wavelength division multiplexing (WDM) technology provides massive transmission bandwidth for optical communication. One optical fiber carries hundreds of wavelength channels, and the transmission bandwidth reaches tens to hundreds of terabits per second. Currently, the core routers used to receive high-speed optical Signals are processed in parallel after optical / electrical conversion, and then multiplexed into high-speed optical signals for forward transmission through electrical / optical conversion. In order to maintain wire-speed packet forwarding, the core...

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Application Information

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IPC IPC(8): G02B6/26G02B6/35H04J14/02
Inventor 袁驰李正斌单樑程雯张平胡经纬陈宇李建学徐安士
Owner PEKING UNIV
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