convolutional code

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convolutional code

A type of channel coding that adds patterns of redundancy to the data in order to improve the signal-to-noise ratio (SNR) for more accurate decoding at the receiving end. The Viterbi algorithm is used to decode a particular type of convolutional code. See Viterbi decoder.

convolutional code [‚kän·vəlü·shən·əl ′kōd]

(communications)

An error-correcting code that processses incoming bits serially rather than in large blocks.

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CDMA
channel coding
turbo code

Viterbi algorithm
Viterbi decoder

Convolutional code [5] is a forward error correction (FEC) code, which allows a receiver to recover the corrupted received data by exploiting the redundancy in the encoded data stream.

A link-level simulator of the cdma2000 reverse-link physical layer by Wyatt-Millington R. / Journal of Research of the National Institute of Standards and Technology

A rate 1/2 convolutional code with constraint length K = 7 is used.

Coding and Modulation for LMDS and Analysis of the LMDS Channel by Hakegard, Jan Erik / Journal of Research of the National Institute of Standards and Technology

Comtech AHA's products include the AHA4540, a single chip Turbo Product Code encoder/decoder that achieves up to 155 Mbps throughput and up to 2-4 dB improvement over conventional FEC schemes, such as Reed-Solomon or convolutional codes.

Comtech AHA Partners with France Telecom R&D to Provide Licensed ... by Business Wire

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