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First Mile Access Networks and Enabling Technologies by Tony Antony, Ashwin Gumaste

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Chapter 7. DSL Technologies

The phenomenal increase in the amount of data in the Internet and related networks has fuelled a similar demand for bandwidth and faster connection speeds, which has driven the development of several technological approaches to provide broadband access to end users. Bandwidth-killer applications such as videoconferencing, multimedia, and video on demand (VoD) and the ongoing deregulation and privatization of telecommunication networks and the rapid growth of distributed business applications have also contributed to this demand for more and more bandwidth from existing networks. Wavelength-division multiplexing (WDM) and terabit routers have generated a vast switching and fiber capacity for the backbone networks, ...

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