Tra c Grooming and Wavelength Assignment in SONET/WDM Rings1 Xijun Zhang and Chunming Qiao Abstract|In high-speed SONET rings with point-to-point WDM links, the cost of SONET Add-Drop Multiplexers (SADMs) can be dominantly high. However, by grooming tra c (i.e. multiplexing lower rate streams) appropriately and using wavelength ADMs (WADMs), the number of… (More)
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