Optimization Technology of Optical Fiber Communication Network Based on Service Classification

Abstract

Optical fiber has huge bandwidth, as a physical medium, it has good anti electromagnetic interference characteristics and excellent security performance, which is very suitable for the establishment of backbone transmission network. Wavelength division multiplexing(WDM) network based on optical fiber has been widely used. Using optical fiber for information transmission can give full play to the nearly unlimited transmission capacity of optical fiber. With the advent of the information age, data service has become the mainstream business, replacing the original telephone voice service. The great development of data transmission service further promotes the continuous development of WDM network technology. Among all kinds of services in optical network, IP service accounts for the largest proportion. In optical networks, switching is an important technology. Network performance is directly related to switching technology. With the development of optical communication technology, a variety of optical switching devices are introduced into WDM optical network, such as optical packet switching, optical burst switching and so on. This makes WDM layer have the ability of dynamic path establishment and removal similar to IP layer. In order to improve the performance of the optical network and reduce the blocking rate of the network, in WDM optical network, the services are designed in different levels. For some very important services, the highest priority is given, and the optical path channel with better survivability and higher fault tolerance is selected. For general services, it can be designed as a lower level service, and choose the appropriate optical path channel for transmission. The experimental results show that this hierarchical service design method can make more effective use of network resources, reduce the network blocking rate, and improve the overall performance of the network.

Linear Anti-interference Algorithm for Digital Signal Transmission in Fiber Optic Communication Networks based on Link Analysis

“…The time and space weight vectors are con- strained by various criteria such as the minimum mean square error criterion, the maximum signal-to-noise ratio criterion, the linearly constrained minimum variance criterion, and the maximum likelihood criterion. In practical engineering applications, appropriate constraint criteria are selected based on different environments [15,19]. The Linear Constrained Minimum Variance (LCMV) criterion is widely used.…”

A reduced power budget and enhanced performance in a wdm system: a new fbg apodization function

“…A wavelength division multiplexing (WDM) technology is considered one the main networking forms of the next generation interconnection backbone network of the appropriate technologies such as next-generation applications based on 5 G, Internet of Things (IoT), and Fiber to the X (FTTX) (Pagare et al 2021;Zhang et al 2021;Garg et al 2020). One of the factors that limit the increase in data rate in the WDM system is dispersion.…”