Results 61 to 70 of about 409 (184)
Serial Concatenated Codes Based on Iterative and Non-Iterative Decoding
Journal of Engineering and Sustainable Development, 2006 This paper gives the design and implementation of iterative and non-iterative decoders of serially concatenated block and convolutional coding schemes.
Maha George Zia +1 more
doaj
Modeling of ADS-B data transmission via satellite
Aviation, 2013 For modelling transmission of ADS-B messages via low-orbit satellite constellation Iridium, the original model of a communication channel “Aircraft-to-Satellite-to-Ground Station” was built using MATLAB Simulink.
Volodymyr Kharchenko +2 more
doaj +1 more source
IET Collaborative Intelligent Manufacturing, Volume 6, Issue 4, December 2024.Domain‐adaptation‐based named entity recognition with information enrichment is proposed for developing an equipment fault knowledge graph. A question answering application of the equipment fault knowledge graph is proposed. Abstract Numerous files, such as records and logs, are generated in the process of equipment diagnosis and maintenance (D&M ...
Dengrui Xiong +3 more
wiley +1 more source
Viterbi decoder without carrier recovery
Electronics Letters, 1996 A novel Viterbi algorithm of low complexity without carrier recovery is proposed. The most important modification is that the decision metric for surviving paths is not the cumulated variable but its amplitude. Simulation results of its application to MDPSK and convolutional code show negligible performance loss.
S.D. Zhou, S.L. Mei, Y. Yao
openaire +1 more source
Journal of Engineering and Sustainable Development, 2007 urbo codes are suitable for deep-space communications, because of the codes astonishing performance at low values of signal to noise ratio (SNR) and their ability to achieve near Shannon limit of channel capacity.
Maha George Zia +1 more
doaj
ITERATIVE SOVA DECODING OVER SYMMETRIC ALPHA STABLE CHANNELS [PDF]
Journal of Engineering Science and Technology, 2012 Soft-Output Viterbi Algorithm (SOVA) is one type of recovery memory-less Markov Chain and is used widely to decode convolutional codes. Fundamentally, conventional SOVA is designed on the basis of Maximum A-Posteriori probability (MAP) under Additive ...
CHUAN HSIAN, PU
doaj
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
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Maximum Likelihood Sequence Detection Receivers for Nonlinear Optical Channels
Journal of Electrical and Computer Engineering, 2015 The space-time whitened matched filter (ST-WMF) maximum likelihood sequence detection (MLSD) architecture has been recently proposed (Maggio et al., 2014).
Gabriel N. Maggio +2 more
doaj +1 more source
A novel low complexity, low latency rate 1/2 FEC code
e-Prime: Advances in Electrical Engineering, Electronics and EnergyIn this paper, a relatively simple and low complexity rate 1/2 FEC (Forward Error Correction) code has been proposed. The proposed encoder combines the effect of the low cross correlation of two orthogonal sequences along with the effect of the ...
Maan A.S. Al-Adwany +2 more
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
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