VOCAL Turbo Codes Boost IEEE 802.11a, 802.11b and 802.11g Wireless LAN Performance.Business Editors/High Tech Writers BUFFALO, N.Y.--(BUSINESS WIRE)--Feb. 12, 2002 Software Solutions Boost Performance in Current and Next Generation WLANs with Low-Power Transmissions VOCAL Technologies, Ltd., a leading developer of software and hardware solutions for the communications industry communications industry, broadly defined, the business of conveying information. Although communication by means of symbols and gestures dates to the beginning of human history, the term generally refers to mass communications. , announces its proprietary Turbo Code A type of channel coding that uses a convolutional code and a type of Viterbi decoder that outputs a continuous value rather than a 0 or 1. See convolutional code and Viterbi decoder. Solution to reduce power and boost performance in the transmit portion of mobile devices in a wireless local area network (WLAN See wireless LAN. WLAN - wireless local area network ), such as a laptop computer. Turbo Codes can increase the performance of a WLAN by more than 5-dB over traditional convolutional coding techniques. Using the VOCAL Turbo Code Solution, an 802.11a system can be configured to perform within 1-dB of that limit. The resulting benefits to the WLAN system are that it requires 5-dB less power, or it can transmit over a greater coverage area. For instance, if an 802.11a system can communicate at 36 Mbps up to 90 ft (30 m), using Turbo Codes it is be able to communicate at 36 Mbps up to 180 ft (60 m). "VOCAL engineers leveraged their experience in Turbo Coding for DSL modems to develop a proprietary Turbo Code Solution for WLAN product design," explains David Jamieson, Manager of Business Development at VOCAL. "This will give PC card and IC manufacturers the opportunity to develop systems with greater functionality and lower power, as well as the flexibility to use multiple hardware platforms." Initially developed in 1993, Turbo codes shift the complex coding functions to the receiver, which boosts transmission communication performance very close to channel capacity. Turbo codes are being specified in multiple wireless standards around the world, including the Third Generation Partnership Project (3GPP GPP Government Performance Project GPP General Purpose Processor GPP General Physical Preparedness GPP Gambian People's Party GPP Good Pharmacy Practice GPP Gross Primary Productivity GPP Green Procurement Program GPP Generic Packetized Protocol ) proposal for IMT-2000, Inmarsat's multimedia service, NASA's Deep Space Network, and the new European DVB (Digital Video Broadcasting) An international digital television (DTV) standard that is the European and Far Eastern counterpart of the North American ATSC standard. standard. The VOCAL Turbo Code software products are available now. VOCAL also offers a LDPC LDPC Low-Density Parity Check Code product, which is available now. About VOCAL Technologies, Ltd. VOCAL Technologies, Ltd. is a privately held company privately held company A firm whose shares are held within a relatively small circle of owners and are not traded publicly. based in Buffalo, NY with additional engineering offices near Barcelona, Spain. Founded in 1986, it is customer-focused and dedicated to providing software and hardware solutions for wireless, voice, video, data, and facsimile applications. For more information, please contact David Jamieson at 716-688-4675 or visit its website at www.vocal.com. |
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