Abstract— Table based error correction and decoding of rate one-half convolutional codes is described. A new class of fast-decodeable locally invertible ...
Abstract: Table based error correction and decoding of rate one-half convolutional codes is described. A new class of fast-decodeable locally invertible ...
In this paper a constructive algorithm for computing the FIR pseudo inverse, based on the usage of Gröbner basis is presented along with detailed examples ...
The goal of this paper is to formally describe the one-to-one mapping principle and the novel table generation and decoding algorithms, and to briefly describe ...
A 1/2 rate convolutional code encodes one information bit and leaves the second information bit uncoded.
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What is 1 2 rate convolutional encoding?
A 1/2 rate convolutional code encodes one information bit and leaves the second information bit uncoded. Figure 8. Half-Rate Convolutional Code With an eight-point signal constellation (e.g. eight-PSK), the two bits select one of the four subsets in the signal constellation.
What are the decoding methods of convolutional codes?
Convolutional codes are characterized by a trellis structure. Maximum-likelihood decoding is characterized as the finding of the shortest path through the code trellis, an efficient solution for which is the Viterbi algorithm.
What is maximum-likelihood decoding of convolutional codes?
Maximum-likelihood decoding of convolutional codes is equivalent to the computation of a shortest path on a particular directed graph called a trellis. A trellis node is labeled with a pair (s,t) , where s represents the state of the encoder at time t .
What is the formula for the code rate of convolution code?
In this case, the code rate R = k/n is 2/3, and the constraint length K, which is defined as the number of k bits that affect formation of each n bits, is 2. Since the minimum (Hamming) distance between codewords is 3, this convolutional coding can correct up to one bit error.
In this paper, we describe an efficient table-driven decoder for 1/2-rate nonsystematic convolutional codes. Various decoder implementation and performance ...
In this paper, we describe an efficient table-driven decoder for 1/2-rate nonsystematic convolutional codes. Various decoder implementation and performance ...
Table based decoding of rate one-half convolutional codes · Maximum weight basis decoding of convolutional codes · A variable-redundancy hybrid ARQ scheme using ...
Vouk, M.A., and Bitzer D., "Fast Convolution Decoding for High-Speed Networks," Third Triangle Conference on Computer Communications, (abstract) pp 13-14, 1990.
This table provides a comparison of the class C(1/2) encoders based on length, data stream types, LZ complexity, ∆LZCAVE per 104 and codes free distance. 12 ...