A Cost Analysis Of A Fiber Upgrade For A Coaxial Cable Network To Support On-Demand Video

David P. Reed; Marvin A. Sirbu

doi:10.1117/12.963437

15 January 1990 A Cost Analysis Of A Fiber Upgrade For A Coaxial Cable Network To Support On-Demand Video

David P. Reed, Marvin A. Sirbu

Proceedings Volume 1179, Fiber Networking and Telecommunications; (1990) https://doi.org/10.1117/12.963437
Event: OE/FIBERS '89, 1989, Boston, United States

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.

Citation Download Citation

David P. Reed and Marvin A. Sirbu "A Cost Analysis Of A Fiber Upgrade For A Coaxial Cable Network To Support On-Demand Video", Proc. SPIE 1179, Fiber Networking and Telecommunications, (15 January 1990); https://doi.org/10.1117/12.963437

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