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G3 Standard

G3-PLC is an orthogonal frequency-division multiplex (OFDM) based technology capable of addressing the difficult challenges of power line communication in harsh and highly dynamic network environments, such as those found in metering applications. This outstanding behaviour is ensured by using dedicated modulation methodologies and making efficient use of the available spectrum under varying circumstances. It also uses specific signal processing techniques, such as two layer forward error correction (FEC), adaptive tone mapping and channel estimation, among others. In parallel, mesh routing mechanisms allow each node to determine the best path between remote network nodes.

Renesas has partnered with BBS Access Singapore to engineer the certified Renesas G3 PLC technology that can deliver a robust, integrated and interoperable AMI solution to the emerging market. This new generation of PLC technology will provide higher communication bandwidth for future advanced smart grid applications. Renesas is a leading contributor to the G3 standard and has worked closely with the G3 alliance in the development of the worldwide G3 protocol. The system architecture keeps the flexible concept and allows support for multiple standards and frequency bands with a single device. The solution, completely software based, enables seamless adjustment to any specification changes, modifications or even evolutions of the existing standards without the need for long development cycles.

Key Features:

  • OFDM-based PHY (BPSK, QPSK, 8PSK) makes efficient use of the spectrum.
  • Compliant with world regulatory bodies such as CENELEC, ARIB, and FCC (10 kHz – 490 kHz).
  • Standards based — pre-standard in IEEE, ITU, IEC/CENELEC and IEC/SAE.
  • Two layers of forward error correction (FEC) for robust data communication in harsh channels.
  • Adaptive tone mapping for optimal bandwidth utilization.
  • Channel estimation to select the optimal modulation scheme between neighbouring nodes.
  • “Robust” mode to improve communication under noisy channel conditions.
  • IEEE 802.15.4-based MAC layer well suited to low data rates.
  • 6LoWPAN adaptation layer to transmit IPv6 packets over powerline channels.
  • AES-128 cryptographic engine for optimum data security.
  • Supports IPv6 to allow Internet-based energy management systems and applications.
  • Mesh routing protocol to determine the best path between remote network nodes.