Efforts to use to the powerline as a transmission medium were 160 years ago [5], but high speed
transmission over 10 Mbps were archived in the mid 1990s. Before this time, the various types
of power lines were assumed to be inherently low data rate transfer media. There are several
Powerline Communication (PLC) protocols. The primary purpose of many of these protocols is
not for home networking, but rather for powerline control protocols for home automation, home
security, and lighting control. On the other hand, the HomePlug 1.0 protocol is a high speed
in-home network standard. Although using the same powerline as home automation protocols,
the HomePlug 1.0 device can coexist with device using these other protocols because by using
a different frequency band than powerline control technologies such as X-10, CEBus, and
Lonworks[8]. There are also some preliminary high-speed PLC network devices with limited
deployment in Europe, where the interest is primarily on access (“last 100 feet”) rather than
in-home networks[7]. However, these are expensive and do not enjoy wide use yet; they also
must contend with both different regulatory environments and power distribution topologies.
Efforts to use to the powerline as a transmission medium were 160 years ago [5], but high speedtransmission over 10 Mbps were archived in the mid 1990s. Before this time, the various typesof power lines were assumed to be inherently low data rate transfer media. There are severalPowerline Communication (PLC) protocols. The primary purpose of many of these protocols isnot for home networking, but rather for powerline control protocols for home automation, homesecurity, and lighting control. On the other hand, the HomePlug 1.0 protocol is a high speedin-home network standard. Although using the same powerline as home automation protocols,the HomePlug 1.0 device can coexist with device using these other protocols because by usinga different frequency band than powerline control technologies such as X-10, CEBus, andLonworks[8]. There are also some preliminary high-speed PLC network devices with limiteddeployment in Europe, where the interest is primarily on access (“last 100 feet”) rather thanin-home networks[7]. However, these are expensive and do not enjoy wide use yet; they alsomust contend with both different regulatory environments and power distribution topologies.
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