Results 41 to 50 of about 2,312,058 (282)

Spatial‐Wavelength Multiplexing Error‐Controlled Photonic Analog Computing System

Advanced Science, EarlyView.
A novel photonic integrated circuit prototype implementing the concept of general‐purpose analog computing and demonstrate its capability in radio frequency applications. The chip features a multichannel architecture and performs fully optical analog computation with frequency‐domain parallel processing. An FPGA‐based error‐correction algorithm aims to
Tao Zhu, Bowen Zhu, Shicheng Zhang, Keren Li, Xianchen Wu, Yazhi Pi, Jie Yan, Daigao Chen, Bingli Guo, Xi Xiao, Lei Wang, Xiaochuan Xu, Xuwei Xue, Shanguo Huang, Zizheng Cao, Shaohua Yu   +15 more
wiley   +1 more source

Performance analysis of modified asymmetrically-clipped optical orthogonal frequency-division multiplexing systems [PDF]

, 2016
A modification to the Asymmetrically-Clipped Optical Orthogonal Frequency-Division Multiplexing (ACO-OFDM) technique is proposed through unipolar encoding.
Andonovic, Ivan, Hussein, Moustafa, Mohamed, Salma, Shalaby, Hossam   +3 more
core   +1 more source

Combination Immunotherapy as a Promising Strategy to Overcome Immunotherapy Resistance: From Emergence to Next‐Generation Approaches

Advanced Science, EarlyView.
This review examines emerging combination immunotherapy strategies tailored to distinct tumor microenvironments and highlights next‐generation biomarkers that guide response prediction and treatment personalization. It integrates lessons from unsuccessful trials, addresses toxicity challenges, and outlines approaches for early biomarker discovery and ...
Asmita Pandey, Sudhir Kumar Rai, Li Ma, Lauren Higa, Vedbar Khadka, Hua Yang, Youping Deng   +6 more
wiley   +1 more source

Development of an improved acm scheme for mitigating earth-to-space propagation effects

Arid Zone Journal of Engineering, Technology and Environment, 2021
Satellite communication is a promising technology due to its ability to serve very large number of users with high data rate services. The communication link experiences propagation losses such as: Path loss, atmospheric losses, rain fading, ionosphere ...
A. M. S. Tekanyi, R. M. Idris, A. D. Usman, M. Z. Abdullahi, E. E. Agbon   +4 more
doaj  

Desain Program Simulasi Unjuk Kerja Kode Walsh Pada Kanal Multipath Fading

Matrix: Jurnal Manajemen Teknologi dan Informatika, 2020
Penelitian ini bertujuan untuk mengetahui pengaruh perubahan jumlah komponen multipath pada unjuk kerja kode Walsh pada kanal multipath fading melalui simulasi dengan menggunakan software Matlab.
Made Arya Putra Kusuma , Nyoman Pramaita , I Made Oka Widyantara , I Gusti Agung Komang Diafari Djuni Harta   +3 more
doaj   +1 more source

Extreme Outages due to Polarization Mode Dispersion

, 2003
We investigate the dependence of the bit-error-rate (BER) caused by amplifier noise in a linear optical fiber telecommunication system on the fiber birefringence.
Andresciani, Bergano, Biondini, Bülow, Eyal, Igor Kolokolov, Kaminow, Kogelnik, Machida, Michael Chertkov, Poole, Poole, Poole, Poole, Rashleigh, Ulrich, Vladimir Chernyak, Vladimir Lebedev, Xie   +18 more
core   +1 more source

A Data-Aided Channel Estimation Scheme for Decoupled Systems in Heterogeneous Networks [PDF]

, 2018
Uplink/downlink (UL/DL) decoupling promises more flexible cell association and higher throughput in heterogeneous networks (HetNets), however, it hampers the acquisition of DL channel state information (CSI) in time-division-duplex (TDD) systems due to ...
Jin, Shi, Liu, Wen, Wong, Kai-Kit, You, Xiaohu   +3 more
core   +2 more sources

Inhibition of SIRT7 Overcomes Radioresistance in Pancreatic Neuroendocrine Tumors by Reactivating MEN1 Expression

Advanced Science, EarlyView.
Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang, Yan Wang, Yi Qin, Luohai Chen, Xiaowu Xu, Guixiong Fan, Desheng Jing, Miaoyan Wei, Xianjun Yu, Junfeng Xu, Shunrong Ji, Jie Chen   +11 more
wiley   +1 more source

FTTH Network Expansion Modeling and Link Budget for Housing Locations

International Journal of Electrical, Energy and Power System Engineering, 2019
The location of the research was carried out at Villa Melati Permai II Housing which is on the Melati Indah Street, Tampan District, Pekanbaru City.
Ery Safrianti, Widyantoro Tejo Mukti
doaj   +1 more source

FULL-RATE SPACE-TIME BLOCK CODE FOR FOUR TRANSMIT ANTENNAS WITH LINEAR DECODING

Jordanian Journal of Computers and Information Technology, 2020
This paper proposes a new full-rate space-time block code for MIMO systems at four transmit antennas, which aims at minimizing the bit error rate with low-complexity decoding using ZF and MMSE linear detection techniques in Rayleigh fading channels ...
Younes Djemamar, Saida Ibnyaich, Abdelouhab Zeroual   +2 more
doaj   +1 more source