Technologies Deployed in Access Networks

As mentioned before, two main technological classifications can be seen in access telco networks: wired and wireless technologies.

Wired networks generally mean a physical connection to the end user, whereas wireless networks mean an absence of such a physical connection. At the time of this writing, the technological classifications of wired networks are as follows:

  • DSL

  • Coaxial cable

  • Fiber (PON and coarse WDM [CWDM])

  • Copper (for example, Ethernet)

  • Power-line communication

In the wireless domain, the following three technological innovations were seen as key attributes to access networking:

  • WiFi

  • Basic cellular technology

  • Infrared and free space optic communication

DSL Technology

In its most primitive form, DSL ...

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