Classification by connection method

Classification by connection method

Computer networks may be classified according to the technology that is used to connect the individual devices in the network such as HomePNA, Power line communication, Ethernet, or Wireless LAN.
HomePNA
The Home Phoneline Networking Alliance seeks to establish standards for home networking over regular phone lines within the home – for compatibility between telecom, computer and network products.
Power line communication
Power line communication (PLC), also called mains communication, power line telecoms (PLT), powerband or power line networking (PLN) or power area networking (PAN) are terms describing several different systems for using power distribution wires for simultaneous distribution of data.
The carrier can communicate voice and data by superimposing an analog signal over the standard 50 or 60 Hz alternating current (AC).
It includes Broadband over Power Lines (BPL) with data rates sometimes above 1 Mbps and Narrowband over Power Lines with much lower data rates.
Traditionally electrical utilities used low-speed power-line carrier circuits for control of substations, voice communication, and protection of high-voltage transmission lines.
High-speed data transmission has been developed using the lower voltage transmission lines used for power distribution.
A short-range form of power-line carrier is used for home automation and intercoms.
Ethernet
Ethernet is a large, diverse family of frame-based computer networking technologies for local area networks (LANs).
The name comes from the physical concept of the ether.
It defines a number of wiring and signaling standards for the physical layer, through means of network access at the Media Access Control (MAC)/Data Link Layer, and a common addressing format.
Wireless LAN
A wireless LAN or WLAN is a wireless local area network, which is the linking of two or more computers without using wires.
WLAN utilizes spread-spectrum technology based on radio waves to enable communication between devices in a limited area, also known as the basic service set.
This gives users the mobility to move around within a broad coverage area and still be connected to the network.
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