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Technologies |
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Modulation and Detection Techniques
The power line is an extremely difficult and noisy communications
medium characterized by several unpredictable and strong forms of
interference, making it an extraordinarily perilous environment for
non-robust communications. Every appliance that is connected to an
outlet contributes line interference, which can be approximated as
Additive White Gaussian Noise (AWGN). Dimmer switches, motorized electrical
appliances and computers introduce pulse interference. Fast fading
also corrupts power line communication channels, which have non-flat
frequency responses and suffer from unpredictable jamming as well
as carrier wave signal interference. All the forgoing make it exceedingly
difficult to ensure reliable power line communication and help explain
the difficulties alternative technologies have had in delivering reliable
power line communication.
Yitran's patented and patent pending modulation techniques overcome
the communication challenges characteristic of the power line medium.
Offering superior performance over the power line, Yitran's technologies
provide solutions to the interference and reliability problems that
plague the medium.
The reliability of Yitran's proprietary modulation techniques is further
enhanced via the utilization of a number of proprietary, non-conventional,
error-correction code schemes, tailored for optimal operation with
Yitran's modulation technologies.
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