Results 71 to 80 of about 328,523 (223)
A Novel High-Speed Configurable Viterbi Decoder for Broadband Access
EURASIP Journal on Advances in Signal Processing, 2003 A novel design and implementation of an online reconfigurable Viterbi decoder is proposed, based on an area-efficient add-compare-select (ACS) architecture, in which the constraint length and traceback depth can be dynamically reconfigured.
Benaissa Mohammed, Zhu Yiqun
doaj +1 more source
Algorithms for Hidden Markov Models Restricted to Occurrences of Regular Expressions
Biology, 2013 Hidden Markov Models (HMMs) are widely used probabilistic models, particularly for annotating sequential data with an underlying hidden structure. Patterns in the annotation are often more relevant to study than the hidden structure itself. A typical HMM
Thomas Mailund +4 more
doaj +1 more source
Pipelined Viterbi Decoder Using FPGA
Research Journal of Applied Sciences, Engineering and Technology, 2013 Convolutional encoding is used in almost all digital communication systems to get better gain in BER (Bit Error Rate) and all applications needs high throughput rate. The Viterbi algorithm is the solution in decoding process. The nonlinear and feedback nature of the Viterbi decoder makes its high speed implementation harder. One of promising approaches
openaire +1 more source
IEEE AccessWe design low-complexity bi-directional (forward and backward) modified Soft-Output Viterbi Algorithm (SOVA) decoders to exploit source memory from binary Markov and hidden Markov model (HMM) sources, respectively, for decoding in serially concatenated ...
Zhijie Guo, Lei Cao
doaj +1 more source
Viterbi Decoder Plain Sailing Design for TCM Decoders
, 2019 Convolutional codes are error correction technique used in noisy channels. Viterbi Algorithm is the most widely used decoding Algorithm, which decodes the sequence in a maximum likelihood sense. But the complexity of the Viterbi decoder increases with the coding rate of the system.
Chandel, Suman, Mathur, Manju
openaire +1 more source
DESIGN OF TCM DECODERS USING OPTIMIZED VITERBI DECODER
International Journal of Computer and Communication Technology, 2015 The use of forward error correcting codes in the digital communication is used to overcome the data corruptions. Although widely-used, the most popular communications decoding algorithm, the Viterbi algorithm, requires an exponential increase in hardware complexity to achieve greater decode accuracy.
openaire +1 more source
STACK DECODING OF LINEAR BLOCK CODES FOR DISCRETE MEMORYLESS CHANNEL USING TREE DIAGRAM [PDF]
ICTACT Journal on Communication Technology, 2012 The boundaries between block and convolutional codes have become diffused after recent advances in the understanding of the trellis structure of block codes and the tail-biting structure of some convolutional codes.
H. Prashantha Kumar +3 more
doaj
Construction of a new class of (2k, k, 1) convolutional codes
Tongxin xuebao, 2014 A new class of (2k,k,1) convolutional codes are created by combining double cyclic codes and (2,1,1) convolu-tional codes, and also a new method for creation long codes with short ones was proposed.
Cheng-chang ZHENG, Wan-quan PENG, Bo WEI
doaj +2 more sources