Results 41 to 50 of about 244,698 (338)

Variable-Weight Optical Code Division Multiple Access System using Different Detection Schemes

Journal of Telecommunications and Information Technology, 2016
In this paper a Variable Weight OCDMA (VWOCDMA) system using KS code with Direct Decoding (DD), Complementary Subtraction (CS) and AND subtraction detections is proposed.
Saleh Seyedzadeh, Majid Moghaddasi, Siti Barirah Ahmad Anas   +2 more
doaj   +1 more source

Chaotic Spread Spectrum Technology for Optical Code Division Multiple Access Passive Optical Network

Guangtongxin yanjiu, 2021
Aiming at the problem of capacity in Wavelength Division Multiplexing-Passive Optical Network (WDM-PON), Optical Code Division Multiple Access WDM-PON (OCDMA-WDM-PON) based on chaotic spread spectrum is proposed to expand the capacity and rate, ensuring ...
Li-wei YANG, Jia-cheng LAI, Shu-ke WANG, Xiang-cheng YI, Xin-lai LIU   +4 more
doaj   +1 more source

Safety of Daprodustat for the Treatment of Chronic Kidney Disease Anemia: Final Analysis of a Multicenter Postmarketing Surveillance Study in Japan

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This final analysis of a multicenter, prospective postmarketing surveillance study evaluated the safety of daprodustat in patients with chronic kidney disease anemia in routine clinical practice in Japan. Methods Patients who initiated daprodustat between September 2020 and July 2022 were registered.
Tadao Akizawa, Kyomi Kanaya, Kiyomi Aizawa, Masanori Onoki, Hirofumi Ozeki, Kazuko Suzuki, Ai Hayashi, Tomohiko Asamura   +7 more
wiley   +1 more source

CDMA/OTFS Sensing Outperforms Pure OTFS at the Same Communication Throughput

IEEE Open Journal of Vehicular Technology
There is a dearth of publications on the subject of spreading-aided Orthogonal Time Frequency Space (OTFS) solutions, especially for Integrated Sensing and Communication (ISAC), even though Code Division Multiple Access (CDMA) assisted multi-user OTFS ...
Hugo Hawkins, Chao Xu, Lie-Liang Yang, Lajos Hanzo   +3 more
doaj   +1 more source

Multiple Access With Polarity Division Sparse Code for Visible Light Communication

IEEE Photonics Journal, 2019
The increasing demand of mobile internet and Internet of Things poses challenging requirements for indoor wireless communication. Visible light communication (VLC) is a promising technology to alleviate the growing traffic problem. In addition, nonlinear
Yu Xiao, Zhitong Huang, Yuefeng Ji
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Hybrid Iterative Multiuser Detection for Channel Coded Space Division Multiple Access OFDM Systems

, 2006
Space division multiple access (SDMA) aided orthogonal frequency division multiplexing (OFDM) systems assisted by efficient multiuser detection (MUD) techniques have recently attracted intensive research interests.
Jiang, M., M. Jiang, Ng, S. X., S.X. Ng, L. Hanzo, Hanzo, L.   +5 more
core   +1 more source

Initial and Post-Initial Code Acquisition in the Non-Coherent Multiple Input/Multiple Output Aided DS-CDMA Downlink [PDF]

, 2008
In this paper, we investigate the issues of both initial and post-initial acquisition schemes in the multiple-input/multiple-output (MIMO)-aided direct-sequence code-division multiple-access (DS-CDMA) downlink when communicating over spatially ...
Won, Seung, Won, SeungHwan, Hanzo, Lajos
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Performance improvement of non-orthogonal multiple access scheme using code division multiplexing

International Journal of Distributed Sensor Networks, 2017
Currently, the standardization of fifth-generation mobile communication system (5G), which realizes 10 Gbps transmission, is in progress. In mobile communications, it is generally difficult to perform high-capacity transmission because of channel fading.
Hiroki Kitagawa, Eiji Okamoto
doaj   +1 more source