Results 31 to 40 of about 19,018 (206)

Understanding turbo codes: A signal processing study

Journal of Information and Intelligence
In this paper, we study turbo codes from the digital signal processing point of view by defining turbo codes over the complex field. It is known that iterative decoding and interleaving between concatenated parallel codes are two key elements that make ...
Xiang-Gen Xia
doaj   +1 more source

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance [PDF]

, 2012
In this paper, we investigate the achievable performance of channel coded single-carrier frequency division multiple-access (SC-FDMA) systems employing various detection schemes, when communicating over frequency-selective fading channels.
Hanzo, Lajos, Yang, Lie-Liang, Zhang, Jiayi   +2 more
core   +1 more source

Turbo Equalization Of Nonlinear ISI-channels Using High Rate FEC Codes [PDF]

Advances in Radio Science, 2005
Turbo equalization is a widely known method to cope with low signal to noise ratio (SNR) channels corrupted by linear intersymbol interference (ISI) (Berrou and Galvieux, 1993; Hagenauer et al., 1997).
M. Siegrist, T. Schorr, A. Dittrich, W. Sauer-Greff, R. Urbansky   +4 more
doaj  

Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm

Tongxin xuebao, 2006
As a necessary input parameter for MAP decoding algorithm,SNR was normally obtained from the channel estimation unit.Corresponding research indicated that SNR estimation deviation degraded significantly the performance of Turbo decoding.MAP decoding ...
WAN Ke, FAN Ping-zhi
doaj   +2 more sources

Parallel decoding of turbo codes using multi-point trellis termination and collision-free interleavers [PDF]

The UMTS turbo encoder is composed of parallel concatenation of two Recursive Systematic Convolutional (RSC) encoders which start and end at a known state. This trellis termination directly affects the performance of turbo codes.
Kale, I., Kale, I., Morling, R.C.S., Morling, R.C.S., Taskaldiran, M., Taskaldiran, M.   +5 more
core   +1 more source

Two-tier channel estimation aided near-capacity MIMO transceivers relying on norm-based joint transmit and receive antenna selection [PDF]

, 2015
We propose a norm-based joint transmit and receive antenna selection (NBJTRAS) aided near-capacity multiple-input multiple-output (MIMO) system relying on the assistance of a novel two-tier channel estimation scheme. Specifically, a rough estimate of the
Chen, Sheng, Hanzo, Lajos, Zhang, Peizhang   +2 more
core   +1 more source

Systematic redundant residue number system codes: analytical upper bound and iterative decoding performance over AWGN and Rayleigh channels

, 2006
The novel family of redundant residue number system (RRNS) codes is studied. RRNS codes constitute maximum–minimum distance block codes, exhibiting identical distance properties to Reed–Solomon codes.
Hanzo, L., Liew, T.H., Yang, L-L.
core   +1 more source

Bacteria and Fungi Synergistically Reprogram Flavonoid Metabolites in the Pericarp of Citrus Reticulata 'Chachi' During Storage

Advanced Science, EarlyView.
The authors employed widely targeted metabolomics, microbial amplicon sequencing, and fermentation assays to investigate the microbiome 's influence on PCRC 's (pericarp of Citrus reticulata ' Chachi ') flavonoid profile over 0–19 years of storage. Based on the correlation analysis, solid‐state and liquid‐state fermentation, and catalytic activity ...
Jianmu Su, Sisheng Zhang, Lidi Liang, Haiyi Bai, Mei Bai, Hanjun He, Yayu Wang, Huan Liu, Xiangxiu Liang, Yu Sun, Hong Wu   +10 more
wiley   +1 more source

Increasing the speed of parallel decoding of turbo codes [PDF]

, 2009
Turbo codes experience a significant decoding delay because of the iterative nature of the decoding algorithms, the high number of metric computations and the complexity added by the (de)interleaver.
Kale, I., Kale, I., Morling, R.C.S., Morling, R.C.S., Taskaldiran, M., Taskaldiran, M.   +5 more
core   +1 more source

OCIAD2 Stabilizes Integrin β1 Signaling Through SNX17‐Mediated Endosomal Recycling to Lipid Rafts and Modulates Cisplatin Response in HNSCC

Advanced Science, EarlyView.
This study identifies OCIAD2 as a critical regulator of cisplatin resistance in HNSCC. Mechanistically, OCIAD2 stabilizes integrin β1 through a direct physical interaction and facilitates its SNX17‐dependent endosomal recycling to lipid raft microdomains. Targeting OCIAD2 disrupts integrin β1 trafficking and significantly enhances cisplatin sensitivity,
Li Cui, Shanshan Si, Min Ye, Pei Lin, Meiyan Zou, Yunfan Lin, Xu Chen, Bing Guo, Wenjuan Sun, Xinyuan Zhao   +9 more
wiley   +1 more source