Results 41 to 50 of about 324,143 (269)

Nexus: A versatile console for advanced low-field MRI. [PDF]

open access: yesMagn Reson Med
Abstract Purpose To develop a low‐cost, high‐performance, versatile, open‐source console for low‐field MRI applications that can integrate a multitude of different auxiliary sensors. Methods A new MR console was realized with four transmission and eight reception channels.
Schote D   +7 more
europepmc   +2 more sources

VLSI Architectures for WIMAX Channel Decoders [PDF]

open access: yes, 2009
This chapter describes the main architectures proposed in the literature to implement the channel decoders required by the WiMax standard, namely convolutional codes, turbo codes (both block and convolutional) and LDPC. Then it shows a complete design of
Martina, Maurizio, Masera, Guido
core   +2 more sources

An Efficient Polar Coding Scheme for Uplink Data Transmission in Narrowband Internet of Things Systems

open access: yesIEEE Access, 2020
Narrowband Internet of Things (NB-IoT) is an emerging IoT cellular-based wireless technology that builds based on the existing LTE standard to extend its network coverage suited for Low Power Wide Area Network (LPWAN) connectivity.
Rabiu Sale Zakariyya   +4 more
doaj   +1 more source

Low Complexity Time-Concatenated Turbo Equalization for Block Transmission Without Guard Interval: Part 1—The Concept [PDF]

open access: yes, 2012
This paper proposes a novel time-concatenated turbo equalization technique, chained turbo equalization (CHATUE), that allows block transmission systems to eliminate the guard interval (GI), while achieving excellent performance.
Khoirul Anwar, Tad Matsumoto
core   +1 more source

Performance Analysis and Improvement for VAMP Soft Frequency-Domain Equalizers

open access: yesIEEE Access, 2019
The vector approximate message passing (VAMP) soft frequency-domain equalizer (SFDE) has been proposed for turbo equalization. It consists of an inner soft equalizer (ISE) and an inner soft slicer (ISS), which iteratively exchange block-wise extrinsic ...
Dong Li, Yanbo Wu, Jun Tao, Min Zhu
doaj   +1 more source

Forward and backward RLS-DDCE processing in MIMO-OFDM spatial multiplexing receivers [PDF]

open access: yesAdvances in Radio Science, 2010
In this paper we present a novel approach in frequency domain channel estimation technique. Our proposal is based on the recursive least squares (RLS) algorithm combined with the decision making process called decision directed channel estimation (RLS ...
M. Muxfeldt, P. Beinschob, U. Zölzer
doaj   +1 more source

Analog decoding of product codes [PDF]

open access: yes, 2001
Journal ArticleA design approach is presented for soft-decision decoding of block product codes ("block turbo codes") using analog computation with MOS devices.
Harrison, Reid R., Winstead, C.
core   +3 more sources

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

open access: yesAdvances 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   +4 more
doaj  

Response to neoadjuvant chemotherapy in early breast cancers is associated with epithelial–mesenchymal transition and tumor‐infiltrating lymphocytes

open access: yesMolecular Oncology, EarlyView.
Epithelial–mesenchymal transition (EMT) and tumor‐infiltrating lymphocytes (TILs) are associated with early breast cancer response to neoadjuvant chemotherapy (NAC). This study evaluated EMT and TIL shifts, with immunofluorescence and RNA sequencing, at diagnosis and in residual tumors as potential biomarkers associated with treatment response.
Françoise Derouane   +16 more
wiley   +1 more source

Partially Information Coupled Duo-Binary Turbo Codes [PDF]

open access: yesarXiv, 2020
Partially information coupled turbo codes (PIC-TCs) is a class of spatially coupled turbo codes that can approach the BEC capacity while keeping the encoding and decoding architectures of the underlying component codes unchanged. However, PIC-TCs have significant rate loss compared to its component rate-1/3 turbo code, and the rate loss increases with ...
arxiv  

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