Hybrid Adaptive Load Shifting Approach for Fault Recovery in Optical Wdm Networks
نویسنده
چکیده
WDM networks play a significant role in telecommunication systems to face the demand for wider bandwidths. Technological growth and the emergence of new advents in WDM technologies require wavelengthrouted channel, which will implement high bit rate applications in the network transport layer. Several researches were carried out and possible technologies were implemented to improve the performance in WDM networks. Based on the impact, failures are classified into Wavelength level failures and Fiber level failures. Wavelength level failures affect the light-path transmission quality, whereas, Fiber level failures have an impact on all the light-paths of an individual fiber.
منابع مشابه
A Reliable and Fault Tolerant Routing for Optical WDM Networks
In optical WDM networks, since each lightpath can carry a huge mount of traffic, failures may seriously damage the end-user applications. Hence fault-tolerance becomes an important issue on these networks. The light path which carries traffic during normal operation is called as primary path. The traffic is rerouted on a backup path in case of a failure. In this paper we propose to design a rel...
متن کاملAdvances in the management and control of optical Internet
Given the ever increasing demand for network bandwidth, and the recent phenomenal advances in optical wavelength division multiplexing (WDM) networking technologies, a major component of the Next Generation Internet will be an Internat protocol (IP)-based optical WDM network. As IP over WDM networking technologies mature, a number of important architectural, management and control issues have s...
متن کاملAdaptive alternate routing in WDM networks and its performance tradeoffs in the presence of wavelength converters
Routing in wavelength-routed all-optical WDM networks has received much attention in the past decade for which fixed and dynamic routing methods have been proposed. Taking into account the observation that wavelength-routed all-optical WDM networks are similar to circuit-switched voice networks, except with regard to wavelength conversion, we propose an adaptive alternate routing (AAR) scheme f...
متن کاملHybrid WDM/Optical CDMA System Based on Hybrid Spectral/Spatial Coding Scheme
The optical CDMA and WDM systems have been of widespread implementation for local and metro access network. This is because optical CDMA systems provide users both simultaneous and asynchronous access to networks with high security [1], and WDM systems provide a relatively high transmission capacity [2]. In addition, optical CDMA can be overlaid onto existing WDM networks in order to enhance th...
متن کاملA hybrid distributed fault-management protocol for combating single-fiber failures in mesh-based DWDM optical networks
This paper presents a novel hybrid distributed faultmanagement protocol for combating single-fiber failures in mesh-based DWDM optical networks. The proposed hybrid approach combines Link State Protocol to disseminate and update information only about the physical connectivity of the network and a distributed local information-based signaling algorithm for connection management. The purpose of ...
متن کامل