Convolutional Codes
A Systematic Approach to Modified BCJR MAP Algorithms for Convolutional Codes
... Since Berrou, Glavieux and Thitimajshima published their landmark paper in 1993, different modified BCJR MAP algorithms have appeared in the literature. The existence of a relatively large number of similar but different ...
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A new algorithm and routing protocol based on convolutional codes using TCNet: Trellis Coded Network
... communication and energy resources such as WSNs. As solution, a new paradigm based on convolutional codes was proposed called the TCNet model. In addition to this work will be presented study cases of MM ...
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FPGA Prototyping of RNN Decoder for Convolutional Codes
... block codes decoding [2, 3] and then for convolutional [4–7] and turbo codes decoding ...decode convolutional codes of a small code rate, and the developed recurrent artificial neural ...
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A new computational decoding complexity measure of convolutional codes
... Convolutional codes are widely adopted due to their capacity to increase the reliability of digital communica- tion systems with manageable encoding/decoding com- plexity ...A convolutional code can ...
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Generalized Punctured Convolutional Codes with Unequal Error Protection
... of convolutional codes with fixed TC( M) [18–21], as opposed to specifying a complexity measure usually associated to the conventional trellis module ...of convolutional codes called ...
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Near capacity three stage MMSE turbo equalization using irregular convolutional codes
... T¨uchler and Hagenauer [9], [10] proposed the employ- ment of IRCCs, which are constituted by a family of convolutional codes having different code rates. They were specifically designed with the aid of ...
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On Locally Invertible Encoders and Multidimensional Convolutional Codes
... 1-D codes that rely on the ring being a PID no longer ...m-D convolutional codes more ...m-D convolutional coding theory is growing [18, 54, 57, 56, 9, 10, 27, ...m-D convolutional ...
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Turbo Detected Unequal Error Protection Irregular Convolutional Codes Designed for the Wideband Advanced Multirate Speech Codec
... Punctured Convolutional (RCPC) codes [4] whose error protection capabilities had been matched to the bit-sensitivity of the speech ...RCPC codes were obtained by puncturing the same mother code, ...
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Convolutional Codes based FCA when Combiner Function is 1-CI
... positions and tries to run through the Viterbi algorithm for the LFSRs corresponding to the product LFSR. This is the first time a convolutional codes based fast correlation attack has been applied to a ...
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Low complexity high throughput decoding architecture for convolutional codes
... The Viterbi algorithm (VA) achieves maximum likeli- hood decoding for convolutional codes [7]. The VA is a breadth-first, exhaustive search approach based on the trellis diagram. Sequential decoding is ...
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Reliable Transmission Of Information Over Channels Using Cryptography And Convolutional Codes
... Convolutional codes were first introduced by by Elias in 1955 as an alternative to block ...for convolutional codes and experimental studies soon began to ...for codes with small memory ...
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The Performance of LDPC Convolutional Codes – A Quantitative Analysis
... block codes and time invariant convolutional codes whereas JFZ method uses a matrix based unwrapping procedure to obtain the H matrix of a periodically time varying convolutional code from the ...
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An efficient algorithm for the reconstruction of punctured convolutional codes
... Recently, Cluzeau and Finiasz [4] proposed a searching algorithm for finding mother code in blind recognition of ( N, K ) punctured convolutional codes. In [4], the struc- ture of the blocked PGM ...
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Performance of Binary Locked Convolutional Codes with Non Transmittable Codewords in Flat and Slow Rayleigh Fading Channel
... binary convolutional codes for communication systems by applying NTCs to enhance Viterbi Algorithm decoders without necessarily increasing code constraint length or using SDD at the decoding ...locked ...
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Adaptive decoding of convolutional codes
... Abstract. Convolutional codes, which are frequently used as error correction codes in digital transmission systems, are generally decoded using the Viterbi ...
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An Iterative Detection Aided Unequal Error Protection Wavelet Video Scheme Using Irregular Convolutional Codes
... The allocation of UEP-based channel coding to the video bits is typically based on the codec’s bit-sensitivity analysis [5][6]. The family of Irregular Convolutional Codes (IRCCs) proposed by Tuchler and ...
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Performance of Parallel Concatenated Convolutional Codes (PCCC) with BPSK in Nakagami Multipath M-Fading Channel
... In 1974, an algorithm, which has become known as maximum aposteriori probability (MAP) algorithm by Bahl et al [10].In order to estimate the a posteriori probabilities of the states and the transition of a Markov source ...
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A new class of parallel data convolutional codes
... In this paper, a new class of parallel data convolutional codes is presented. The PDCC encoder takes two parallel data inputs, with one being the original data and the other being the inter leaved data. ...
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Space Time Convolutional Codes over Finite Fields and Rings for Systems with Large Diversity Order
... In this paper, we have considered space-time convolutional codes over finite fields and rings for the quasistatic, flat Rayleigh fading channel. Based on this encoding structure, we proved three properties ...
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Decoding LDPC Convolutional Codes on Markov Channels
... and convolutional codes, LDPC-CCs need a simpler processing unit, that is, the area of an LDPC-CC decoder chip involved in active computations is much less than for the LDPC-BC case, hence bringing down the ...
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