Results 61 to 70 of about 425 (179)
Separating Noisy TCP/IP Session Flows Based on Natural Redundancy Decoding
IET Communications, Volume 19, Issue 1, January/December 2025.This paper optimizes the mean shift clustering algorithm for session flow separation in noisy environments by introducing a channel matching index for better window radius selection and using a majority decision mechanism for clustering centre updates. Tested on the CIC‐IDS‐2017 dataset, the proposed method achieves flow separation at a bit error rate ...
Guoxian Yu +3 more
wiley +1 more source
Urban Travel Chain Estimation Based on Combination of CHMM and LDA Model
IET Intelligent Transport Systems, Volume 19, Issue 1, January/December 2025.This study proposes a method that utilizes continuous hidden Markov models (CHMMs) and a travel destination prediction model, incorporating individual memory effects and distance effects, to estimate activity sequences for each travel chain and predict destinations, while optimizing CHMM results through the latent Dirichlet allocation topic model ...
Chenxi Xiao +3 more
wiley +1 more source
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
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
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
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