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Proceedings Paper

A Cost Analysis Of A Fiber Upgrade For A Coaxial Cable Network To Support On-Demand Video
Author(s): David P. Reed; Marvin A. Sirbu
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Paper Abstract

An engineering cost model has been constructed to examine the economics of using fiber optics to upgrade existing coaxial cable networks in order to provide on-demand video service. Two fiber backbone alternatives have been considered: a mixed digital/analog subcarrier multiplexing system and a fully digital pulse code modulation, time division multiplexed system. The results suggest that to provide an on-demand video service, the cable company will have to depart from their traditional approach of employing a high degree of common plant and move in the direction of providing a dedicated channel for each subscriber. The extent to which common plant can be shared among multiple subscribers decreases in proportion to the increase in ODV usage, with correspondingly higher costs per subscriber. Model calculations suggest that serious economic barriers exist to realizing an ODV service through simple fiber backbone upgrades to existing cable networks.

Paper Details

Date Published: 15 January 1990
PDF: 14 pages
Proc. SPIE 1179, Fiber Networking and Telecommunications, (15 January 1990); doi: 10.1117/12.963437
Show Author Affiliations
David P. Reed, Carnegie Mellon University (United States)
Marvin A. Sirbu, Carnegie Mellon University (United States)


Published in SPIE Proceedings Vol. 1179:
Fiber Networking and Telecommunications
Joseph Garodnick; Lynn D. Hutcheson; David A. Kahn, Editor(s)

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