SUPER-FM AND ANALOG-TO-DIGITAL-CONVERSION TECHNOLOGIES FOR NEXT-GENERATION WIRELESS ACCESS IN OPTICAL FIBERS

Fibre-in-the-loop (FITL) or hybrid fibre coaxial (HFC) networks are th e ideal transmission infrastructure for next-generation wireless commu nication networks, such as digital microcells, personal communication networks (PCNs) and wireless local area networks (LANs). In this paper , the feasibility of two cost-effective optical fibre transmission tec hnologies, super-frequency-modulation (FM) and analogue-to-digital con version, for wireless access in broadband optical fibres are experimen tally demonstrated. Associated circuit and system implementation issue s are investigated. Furthermore, by using a statistical model of multi ple access in different microcellular environments, we find that both transmission technologies can meet the dynamic range requirements with a significant safe margin.