Optical Networking White Papers
Options for High-Efficiency HFC Return Architectures
Overview
The first part of this paper ("Dense Wavelength Division Multiplexing in Hybrid-Fiber Coax Systems") addressed how DWDM technology can be used to extend the capabilities of the forward path of an existing Hybrid Fiber/Coaxial (HFC) CATV network. This second, and final, part will address various options - including DWDM - for the return path.
Providing internet access, video-on-demand, and other two-way services presents a great
opportunity as well as significant challenges to system operators. Perhaps the greatest challenge is in the return path. Historically, the return path of a cable system has not been heavily
used. Therefore, the bandwidth available is limited. Also, ingress noise is a significant problem in the frequency band of the return path. Finally, because until recently the return was not heavily used, there is limited experience with the return path in the industry.
| Publisher | Harmonic | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | September 2001 | Downloads | 19 |
| Format | White Papers | ||
| Topics | |||
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