Flash-OFDM

Flash-OFDM (Fast Low Latency Access with Seamless Handoff - OFDM) is a proprietary technology from Flarion for mobile broadband datacommunications. Flash-OFDM is completely based on IP over a packet-switched network. Speech services are only possible with Voice over IP.

Flash-OFDM is mainly targeting at wireless internet access with a PC and a suitable modem. Flash-OFDM claims to be more efficiëent than UMTS. The basestation supporting the Flash-OFDM technology is called a RadioRouter.

The key characteristics of Flash-OFDM are:

• Optimized for packet-switched data;
• Completely based on IP;
• Low latency in the network;
• Support of user mobility,
  maximum speed of the user is around 250 km/h.
• Maximum bit rate 3,2 Mbit/s
  On average 1,5 Mbit/s (downlink) / 300-500 kbit/s (uplink) per user;
• Radio channel width: 1,25 MHz;
• Frequency usage: 2 × 1,25 MHz to 5 MHz for network deployment,
  Frequency Division Duplex;
• Based on OFDM;
• Frequency hopping;
• Robust for multipath fading.

Flash OFDM can operate in a number of frequency bands ranging from 450 MHz to 3,5 GHz, including the IMT2000/UMTS 2 GHz bands.