OFDM Modem for Wireless and Wired Communication

Digital intercom based on OFDM modemOur embedded modem is a core technology for wired or wireless data links based on the industry's most advanced C-OFDM modem implementation boasting an efficiency greater than 10bits/s/Hz.
Typical use cases include data links over the air (mobile, portable, or stationary), or in existing infrastructure, e.g. 4-wire lines, coax cables, power lines, sub-sea cables, twisted pairs, and even barb wires.
Applications include intercoms (audio, video, data), ad-hoc disaster communication, industrial control, telemetry and monitoring, WAN extensions, kiosks and remote access control (DECS - Digital Entry Control System).

The field-proven algorithm is extremely robust and available for catalog signal processors such as SHARC and fixed-point DSP.

Modem hardware with complete infrastructure and software is available for integration into target applications. The modem algorithm is also available for licensing as object code for SHARC, Blackfin and and Texas Instruments DSP.

A radio link consists of two identical units, the local unit being connected to a local network access point (e.g. Ethernet), the remote unit being automatically integrated into the local network in a completely transparent fashion.

Basic technical data are listed below, a full datasheet is available here.

TECHNICAL DATA Wireless or Wired Link
Modulation C-OFDM multi-carrier modulation, QAM-4 to QAM-4096 with up to 100 sub-carriers
Coding 4D-Trellis Coded Modulation with Trellis Shaping and external FEC (Reed-Solomon)
Transmission Modes FDD, TDD, Simplex, Half Duplex
Firmware Variants Point-to-Point stationary, Point-to-Point und Point-to-Multipoint
Operating Band (wireless) Any frequency from 10kHz to 1000 MHz, configurable duplex spacing
Channel Bandwidth/Spacing 3,125 kHz, 6,25 kHz, 12,5 kHz, 25 kHz, 50 kHz, 100 kHz, 200 kHz, 400 kHz, 800kHz
Achievable Data Rates up to 2048 kbps @ 200kHz bandwidth
Operating Range up to 50 km (typical Point-to-Point with directional antennas), 80 km across low-loss cable (<1dB/km)