Better noise immunity from new FEC technology

Edited by the Electronicstalk editorial team Feb 21, 2002

Flarion Technologies is claiming another technological achievement with the availability of its forward error-correction (FEC) technology based on low-density parity-check (LDPC) codes.

Flarion Technologies is claiming another technological achievement with the availability of its forward error-correction (FEC) technology based on low-density parity-check (LDPC) codes.

Flarion's Vector-LDPC codes bring better noise immunity benefits to applications such as wireless, satellite communications, magnetic and optical storage, and data communications equipment spanning a wide range of transmission speeds and markets.

"Many high-speed communications applications stand to benefit greatly from the large coding gains, high data rate, and smaller hardware size of Flarion's Vector-LDPC codes", said Dr Robert Calderbank, one of the world's foremost experts in the theory and application of coding techniques and the recipient of the IEEE Third Millennium Medal for his contributions to digital communications.

Flarion's Vector-LDPC codes significantly reduce equipment costs, reduce power requirements, increase transmission distance and improve spectral efficiencies.

Compared with advanced industry standard Turbo codes, Flarion's programmable V-LDPC codes offer four-times higher throughput for the same hardware complexity, four times lower hardware complexity at comparable throughput, and far lower error floors.

"In designing Flarion's next generation communication systems (flash-OFDM), we have pioneered the use of Vector-LDPC codes in wireless and have developed significant innovations that now will benefit numerous communications protocols and applications", said Bob Suffern, Flarion's vice president of engineering.

"Licensing Vector-LDPC to other industries will help speed up communications and multi-media applications, while making them less expensive and more efficient".

Vector-LDPC codes are incorporated within Flarion's flash-OFDM modem chipsets and mobile communication system for always-on, mobile broadband connectivity.

Flarion's flash-OFDM mobile broadband system is a packet-switched radio access network that seamlessly transports IP services over-the-air from an IP network to a user device.

Any laptop, personal digital assistant (PDA) or other standard device can be unwired by simply plugging in a flash-OFDM PCMCIA Card - with no changes to the IP protocol, applications, devices, or content.

Flarion's flash-OFDM technology allows mobile operators to profitably offer ubiquitous connectivity to enterprise users and consumers.