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In wavelength-division multiplexing (WDM) optical networks, the bandwidth request of a traffic stream can be much lower than the capacity of a lightpath. Therefore, to utilize the network resources (such as bandwidth and transceivers) effectively, several low-speed traffic streams can be efficiently groomed or multiplexed into high-speed lightpaths, thus we can improve the network throughput and reduce...
This paper proposes fault (attack) detection and localization scheme to handle multiple failures (attacks) in the optical network using wavelength-division multiplexing (WDM) technology. This proposed scheme is two-phased scheme containing (a) the detection of faults (attacks) through monitoring devices raising alarms (fault or attack detection) and (b) subsequently the localization of these faults...
In wavelength routed optical networks, each optical link is capable of carrying traffic using several wavelengths and each wavelength as well as lightpath support traffic in the Gbps range. On the other hand, the traffic requested by individual connection is still in the Mbps range. Therefore, to utilize the network resources (bandwidth, transceivers, etc.) effectively, several low-speed traffic streams...
In the wavelength division multiplexing (WDM) optical networks, user's requirement is much less (in Mbps range) than the capacity of a wavelength channel (in Gbps range) and number of wavelength channels is limited in a fiber due to several constraints. Each wavelength channel between end nodes requires a pair of transmitter and receiver for digital to optical conversion. In order to decrease the...
This paper proposes a scheme containing (a) the detection of faults or attacks through monitoring devices raising alarms and (b) the localization of them by invoking an algorithm. We demonstrate the performance of this scheme on EuroNet.
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