Wireless local communications using star-ring fiber optic CATV networks

Yang-Han Lee; Hen-Wai Tsao; Le-Pond Chin; Jingshown Wu

doi:10.1117/12.220882

18 September 1995 Wireless local communications using star-ring fiber optic CATV networks

Yang-Han Lee, Hen-Wai Tsao, Le-Pond Chin, Jingshown Wu

Proceedings Volume 2556, Wireless Communications; (1995) https://doi.org/10.1117/12.220882
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In this paper, we utilize the embedded hybrid fiber-optic/coaxial CATV network for wireless bidirectional communications with a star-ring fiber-optic network to distribute broadcasting cable TV programs and simultaneously to provide bidirectional transmission of wireless signals. At the head end, there are two lasers: the downlink laser is split into two parts (one as the local oscillator for the uplink coherent detection and the other being externally modulated by the combined TV and wireless signals); the uplink laser connects to the ring network with the cascaded phase modulators schemes. For the star-ring topology, the total hub number are limited by the CNR of TV signals and the radius between head end and hub as: the total hub number of this system to be 14 and 20 for r of 5 km and 1 km, respectively, with the CNR_U and CNR_D larger than 15 dB together with CNR_TV larger than 50 dB.

Citation Download Citation

Yang-Han Lee, Hen-Wai Tsao, Le-Pond Chin, and Jingshown Wu "Wireless local communications using star-ring fiber optic CATV networks", Proc. SPIE 2556, Wireless Communications, (18 September 1995); https://doi.org/10.1117/12.220882

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