HomePlug Green Phy
HomePlug Green Phy: Less data rate at much reduced power dissipation
In the area of Smart Grid, Smart Meter and Home Control applications, reliable connections are mandatory. At the same time, user data need to be transmitted securely and encoded. This means that overhead data and with it the whole amount of transmit data often is increased and the data rates of Narrow Band PLC are not enough for time critical applications with many nodes involved.
On the other side Broad Band PLC with it´s very high data rates are oversized for these kind of applications and the pretty high power consumption speak against the use of Broad Band PLC as well.
HomePlug Green Phy Standard offers a solution to this dilemma.
Our suppliers in this category HomePlug Green Phy:
DEVOLO AG has been developing innovative powerline products for private customers and commercial use. The main business of DEVOLO are their dLAN product range (direct Local Area Network) for data transmission via the in-house powerline / mains and coaxial cabling. With that, one can easily built up Ethernet based networks for internet access, IPTV streaming, WiFi repeater solutions and others.
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HomePlug Green Phy dispenses entirely the subcarrier modulation and communication takes place in QPSK-Mode (Quadrature Phase-Shift Keying) of HomePlug AV only.
By dispensing subcarrier modulation, it is not required anymore to characterize the channel. Both result in substantially reduced performance requirements for the integrated processor and with that in much reduced power dissipation.
At the same time the required memory can be reduced and as a result can be integrated into the MAC/PHY chip. Sensitivity can be lowered as well when running the chip in QPSK Modulation mode only compared with 1.024 QAM and so the analogue front end can be integrated as well. Both lead to a simplified system design and finally to a single chip solution.
Because of the fact that frequency range, channel spacing as well as forward error correction method remain the same for HomePlug Green Phy equipment compared to HomePlug AV / AV2 / IEEE 1901 all devices are fully interoperable and are able to communicate with each other.
CODICO offers diverse modules and development tools according HomePlug Green Phy standard.