Results 51 to 60 of about 44,759 (278)
Repeat-punctured superorthogonal convolutional turbo codes on AWGN and flat Rayleigh fading channels
South African Journal of Science, 2010 Repeat-punctured turbo codes, an extension of the conventional turbo-coding scheme, has shown a significant increase in bit-error rate performance at moderate to high signal-to-noise ratios for short frame lengths.
Narushan Pillay +2 more
doaj
IEEE AccessAs the number of services and applications with diverse requirements keeps increasing, it is therefore of paramount importance to develop more efficient resource allocation techniques.
Ege Engin +3 more
doaj +1 more source
Entropy, 2017 In this paper, we propose a rate-compatible (RC) parallel concatenated punctured polar (PCPP) codes for incremental redundancy hybrid automatic repeat request (IR-HARQ) transmission schemes, which can transmit multiple data blocks over a time-varying ...
Jian Jiao +5 more
doaj +1 more source
Effects of Biological Sex and Age on Cerebrospinal Fluid Markers—A Retrospective Observational Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Cerebrospinal fluid (CSF) analysis is a key diagnostic tool for neurological diseases. To date, only a few studies have investigated in larger cohorts the effect of age and biological sex on diagnostic markers extracted from CSF. Methods For this retrospective observational study, 4163 CSF findings (2012–2020) were evaluated.
Isabel‐Sophie Hafer +3 more
wiley +1 more source
Capacity-achieving ensembles for the binary erasure channel with bounded complexity
, 2004 We present two sequences of ensembles of non-systematic irregular repeat-accumulate codes which asymptotically (as their block length tends to infinity) achieve capacity on the binary erasure channel (BEC) with bounded complexity per information bit ...
Pfister, H., Sason, I., Urbanke, R.
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Introduction Spinal cord infarction (SCI) is a rare but devastating myelopathy, characterized by a high disability rate and an unfavorable prognosis. It has often been underdiagnosed and misdiagnosed as idiopathic transverse myelitis (ITM). This study aimed to describe the clinical features, radiological biomarkers, treatments, and functional ...
Zeqiang Ji +13 more
wiley +1 more source
LDPC convolutional codes coded cooperation based on puncturing
Tongxin xuebao, 2017 To design a scheme that can approaching the capacity 1imitation transfer，and genera11y app1ied to s1ow and fast fading，the coded cooperation based on LDPC convo1utiona1 codes was studied.First1y，based on LDPC convo1utiona1 codes，the coded words were ...
Wen-he JIN +3 more
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Effect of Empoasca onukii Puncturing Aroma- and Taste-Active Metabolites of Qingxindamao Beauty Tea [PDF]
Shipin KexueTo explore the effects of Empoasca onukii puncturing on metabolites in beauty tea produced from the cultivar Qingxindamao, sensory evaluation, ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) and ...
LI Mingjin, ZHU Yanyu, HE Chunmei, YAN Jiawei, JIN Shan
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Meningovascular Inflammation in Cerebral Amyloid Angiopathy‐Related Cortical Superficial Siderosis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT The role of inflammation in cortical superficial siderosis (cSS), a marker of cerebral amyloid angiopathy (CAA) linked to high hemorrhage risk, is unclear. We examined 15 patients with cSS using 3 T post‐contrast vessel wall MRI (VWI) and CSF analysis.
Philipp Arndt +8 more
wiley +1 more source
Acute Medicine Journal, 2011 Most junior doctors learn common practical procedures, like lumbar puncture, on the job. This usually involves unstructured observation, demonstration and then supervised practice. Thus, most doctors have learned to perform a lumbar puncture without studying the theory of the procedure in any detail.
openaire +3 more sources