Results 11 to 20 of about 355 (175)
The Therapeutic Potential of Farm Dust Extracts in a Mouse Model of Eosinophilic Inflammation. [PDF]
AllergyFarm dust extract (FDE) treatment reduces airway eosinophilia, mucus overproduction, and MHC‐II expression on DCs, limiting antigen presentation and Th2 inflammation. It increases PD‐L1 on DCs, promoting T cell deactivation. Additionally, FDE enhances Tregs and upregulates CTLA‐4, reinforcing suppression.
Korkmaz RÜ +16 more
europepmc +2 more sources
Research on single carrier frequency domain equalization system based on FQPSK modulation
ITM Web of Conferences, 2018 Feher-patented quadrature phase shift keying (fqpsk) modulation is proposed for single-carrier frequency domain equalization (sc-fde). this paper puts forward a new method modulation called cc-bcd-fqpsk.
Zhang Meng, Bie Zhisong
doaj +1 more source
Performance Analysis of OFDMA and SC-FDMA
Vìsnik Nacìonalʹnogo Tehnìčnogo Unìversitetu Ukraïni Kììvsʹkij Polìtehnìčnij Ìnstitut: Serìâ Radìotehnìka, Radìoaparatobuduvannâ, 2017 The main challenge in any high-speed digital communication system is how to maximize the data rate with minimizing the bit error rate. Several techniques have been developed to achieve this point.
Muhanned AL-Rawi
doaj +1 more source
Power-Ordered NOMA with Massive MIMO for 5G Systems
Applied Sciences, 2021 The aim of this article is to study the conventional and cooperative power-order Non-Orthogonal Multiple Access (NOMA) using the Single Carrier with Frequency Domain Equalization (SC-FDE) block transmission technique, associated with massive Multiple ...
Mário Marques da Silva, Rui Dinis
doaj +1 more source
Joint detection and channel estimation for SC-FDE with STBC [PDF]
2009 15th Asia-Pacific Conference on Communications, 2009 We consider block transmission techniques combined with rate-1 Space Time Block Coding (STBC) for two or four transmit antennas. Since our STBC with 4 transmit antennas is not orthogonal, our receiver includes the cancellation of the residual interference, allowing performances close to the ones of an orthogonal code.
Silva, Mário Marques da +2 more
openaire +2 more sources
Joint estimation and detection method based on turbo equalization framework and VAMP [PDF]
ITM Web of Conferences, 2022 In this letter, we consider the single-carrier frequency domain equalization (SC-FDE) system, and propose a low-complexity joint symbol detection and channel estimation algorithm based on the recently proposed vector approximate message passing (VAMP ...
Zhang Jiali +5 more
doaj +1 more source
Optimal Tx-BF for MIMO SC-FDE Systems [PDF]
IEEE Communications Letters, 2013 Transmit beamforming (Tx-BF) for multiple-input multiple-output (MIMO) channels is an effective means to improve system performance. In frequency-selective channels, Tx-BF can be implemented in combination with single-carrier frequency-domain equalization (SC-FDE) to combat inter-symbol interference. In this paper, we consider the optimal design of the
Peiran Wu +2 more
openaire +2 more sources
Nonlinearity-Based Ranging Technique in SC-FDE Communication System With Oversampled Signals
IEEE Access, 2019 Ground-based positioning systems are necessary as the conventional satellite-based systems suffer from weak received signals. In this paper, we proposed a precise ranging method in single-carrier frequency domain equalization (SC-FDE) system using the ...
Xi Pan, Shouliang Liu, Shuo Yan
doaj +1 more source
Online LSTM-Based Channel Estimation for HF MIMO SC-FDE System
IEEE Access, 2020 The long distance high frequency (HF) communication suffers from time varying multipath fading. Multiple-Input Multiple-Output (MIMO) and Single-Carrier Frequency Domain Equalization (SC-FDE) have been introduced to HF communication system to combat ...
Zhiyong Wang +5 more
doaj +1 more source
Equalizer design in frequency domain of SC-FDE system(SC-FDE系统的频域均衡器设计)
Zhejiang Daxue xuebao. Lixue ban, 2007 在介绍了频域均衡单载波(SC-FDE)系统的特点和工作原理基础上，提出了几种适合于SC-FDE系统的频域均衡器结构：迫零均衡器、最小均方误差均衡器、最小二乘均衡器、最小均方误差-判决反馈均衡器、频域自适应均衡器以及采用OFDM信号处理方式的自适应均衡器.分别在SUI-3和SUI-5信道条件下通过Matlab平台上的性能仿真对提出的几种均衡嚣进行了比较，得出了一些有实际意义的结论.
TANGJin-hua(唐金花) +3 more
doaj +1 more source