Semitech Semiconductor launched the SM2200 OFDMA (Orthogonal Frequency Division Multiple Access) based power line transceiver. The smart grid SM2200 includes a packet data modem with a simple physical layer protocol. When combined with a microcontroller (MCU), the chip is a cost effective solution for data links and point-to-point, star or ad hoc networks. The SM2200 IC is ideal for metering infrastructure and automated meter reading, street lighting control, smart energy home area networking, home automation, building automation, and other deployments requiring communications over an existing power line. The OFDMA power line communication transceiver is sampling now.