Results 81 to 90 of about 1,593,061 (277)

Relay Switching Aided Turbo Coded Hybrid-ARQ for Correlated Fading Channel

, 2011
Hybrid-Automatic-Repeat-reQuest (HARQ) has become an indispensable technique in reliable communications systems. However, its performance is inevitably affected by the channel’s fading correlation. In this paper, we proposed a novel relay-switching aided
Maunder, Robert, Robert G. Maunder, Ngo, Hoang Anh, Hoang Anh Ngo, Hanzo, Lajos, Lajos Hanzo   +5 more
core   +1 more source

Optimizing of Iterative Turbo Equalizer for Underwater Sensor Communication

International Journal of Distributed Sensor Networks, 2013
We presented an iterative turbo equalization to cope with intersymbol interference induced by reflection of sea level and sea bottom for underwater sensor communication channel. Iterative turbo equalizer consists of inner codes and outer codes; we employ
Ji Won Jung, Ki Man Kim
doaj   +1 more source

Promises and limitations of deep learning for predicting knee osteoarthritis progression from medical imaging: A systematic review

Knee Surgery, Sports Traumatology, Arthroscopy, EarlyView.
Abstract Purpose To systematically evaluate the performance, methodological quality, and translational barriers of deep learning (DL) models for predicting knee osteoarthritis (KOA) progression from medical imaging. Methods Following PRISMA guidelines, we searched PubMed, Scopus, and Web of Science (inception to June 2026) for peer‐reviewed studies ...
Amna Gillani, Rüdiger von Eisenhart‐Rothe, Klaus Woertler, Michael T. Hirschmann, Daniel Rueckert, Florian Hinterwimmer   +5 more
wiley   +1 more source

Towards Faster Fetal 3D CINE Cardiac MRI Reconstruction Using Region‐Optimized Virtual Coils (ROVir)

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop and evaluate, in a feasibility study, a computationally efficient image‐reconstruction pipeline for 3D balanced steady state free precession (bSSFP) CINE fetal cardiac MRI that reduces radial streaking artifacts, increases effective temporal resolution, and improves diagnostic image quality compared with previous work ...
Marjolein Piek, Johannes Töger, Einar Heiberg, Katrin Fricke, Erik Hedström, Anthony H. Aletras   +5 more
wiley   +1 more source

An Inline‐Integrable Image Restoration Model With ROI Fine‐Tuning and Slice‐to‐Volume Reconstruction for Accelerated Whole‐Brain Vessel Wall Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a vessel wall imaging (VWI)‐dedicated image restoration model enabling high‐resolution whole‐brain VWI in under 6 min. Methods A transformer‐based 2.5D model was trained in a supervised manner to enhance the image quality of CAIPIRINHA 2 × 2‐accelerated VWI acquisitions to a level comparable to that of GRAPPA twofold ...
Pengcheng Wang, Jingxiang Zhang, Jiayu Xiao, Junzhou Chen, Zhenjia Wang, Jin Li, Qingle Kong, Steven Y. Cen, Sophia X. Cui, Yifei Zhang, Wei Yu, Qi Yang, Nasim Sheikh‐Bahaei, William J. Mack, Zhaoyang Fan   +14 more
wiley   +1 more source

Interblock memory for turbo coding

IEEE Transactions on Communications, 2010
We investigate a binary code, which is implemented by serially concatenating a multiplexer, a multilevel delay processor, and a signal mapper to a binary turbo encoder. To achieve improved convergence behavior, we modify the binary code by passing only a fraction of the bits in the turbo code through the multilevel delay processor and the signal mapper.
Chia-Jung Yeh, Yeong-Luh Ueng, Mao-Chao Lin, Ming-Che Lu   +3 more
openaire   +2 more sources

Self‐Correction of B0 Drift and Trajectory Error in Alternating Unbalanced SSFP‐FID and SSFP‐ECHO (AUSFIDE)‐Based 3D Transverse Relaxometry of the Human Brain

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose The alternating unbalanced SSFP (AUSFIDE) pulse sequence, which consists of multi‐echo trains of SSFP‐FID and SSFP‐ECHO modules, enables rapid estimation of R2 and R2′, but is prone to errors from temporal drift of the main magnetic field (B0) and k‐space trajectory mismatch.
Eunseo Bae, Sung Suk Oh, Dongyeob Han, Kathryn M. Jaroszynski, Felix W. Wehrli, Hyunyeol Lee   +5 more
wiley   +1 more source

Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes

, 2006
Traditional Turbo EQualization (TEQ) schemes suffer from residual bit errors due to the non-recursive nature of the channel imposing Inter-Symbol-Interference (ISI).
Ng, S.X., Wolfgang, A., Wang, J., Yang, L-L., Hanzo, L., Chen, S.   +5 more
core   +1 more source

Improvement of Channel Coding System in Narrowband Communication System

Dianxin kexue, 2013
With the advantages of low complexity and easy implementation，convolution code is widely used in practical communication systems. However，the requirement of higher transmission power in tactical environment of long distance transmission and higher ...
Yanjun Wang, Jing Yue, Xue Cui
doaj   +2 more sources

Cooperative Signaling with Soft Information Combining

Journal of Electrical and Computer Engineering, 2010
We propose a Decode-and-Forward (DF) scheme using distributed Turbo code (DTC) for a three-node (source, relay, and destination) wireless cooperative communication system. The relay decodes, then interleaves, and reencodes the decoded data.
Rui Lin, Philippa A. Martin, Desmond P. Taylor   +2 more
doaj   +1 more source