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convolutional code
(redirected from Constraint length)

   Also found in: Wikipedia 0.01 sec.
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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One of major drawbacks of such turbo-MIMO concepts is that its complexity increases exponentially with the number of transmit/receive antennas, the number of bits per symbol and /or the code constraint length.
Both architectures use familiar MATLAB parameters such as constraint length, code generators, traceback length, and the number of soft decision bits.
The receiver includes on-board Forward Error Correction (FEC), which provides a constraint length K=7 at Rate 1/2, to reduce overhead and assure the highest signal integrity.
 
 
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