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Hi Dhiamn,
As we know WDM is the current favorite multiplexing technology for long-haul communications in optical communication
networks since all of the end-user equipment needs to operate only at the bit rate of a WDM channel, which can be chosen
arbitrarily, e.g., peak electronic processing speed. Hence, the major carriers today all devote significant effort to developing
and applying WDM technologies in their businesses.
Recent research interests in WDM networks include network
control and management, fault management, multicasting,
1818 IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 18, NO. 10, OCTOBER 2000
physical-layer issues, IP over WDM, traffic grooming, and optical
packet switching, just to name a few.
In a wavelength-routed WDM network, a control mechanism is needed to set up and take down all-optical connections.
Studies have been conducted to examine different approaches to
protect WDM optical networks from single fiber-link failures.
And many issues and challenges in WDM system must be studied.
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