A network engineer is tasked with deploying a cost-effective solution to combine several channels of data for transmission over a single fiber optic link in a metropolitan area network. The channels are to be transmitted over distances not exceeding 80 kilometers without repeaters. Which technology should the engineer consider implementing?
Optical Transport Network (OTN)
Fiber Channel over Ethernet (FCoE)
Time-Division Multiplexing (TDM)
Coarse Wavelength Division Multiplexing (CWDM)
Dense Wavelength Division Multiplexing (DWDM)
Multiprotocol Label Switching (MPLS)