Results 61 to 70 of about 4,446,627 (280)
ETRI Journal, 2022 In this study, a novel group-indexed orthogonal frequency division multiplexing index modulation (OFDM-IM) scheme is proposed to achieve a tradeoff between spectral efficiency (SE) and bit-error-rate (BER) performance.
Thomas Wilfred Edison Athisaya Anushya +2 more
doaj +1 more source
Advantages Of Optical Orthogonal Frequency Division Multiplexing In Communications Systems [PDF]
, 2016 The role of the optical transmitter is to generate the optical signal, impose the information bearing signal, and launch the modulated signal into the optical fiber.
Abdourahamane, A. (Ali) +1 more
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Advanced Science, EarlyView.This study developed a convenient, enzyme‐free detection platform based on controllable aggregation ion nanomachines. Its favorable anti‐interference capacity and high sensitivity meet the detection requirements for clinical samples processed via a simple filtration method within 10 min.
Zhihao Zhang +8 more
wiley +1 more source
Frequency-domain precoding for single carrier frequency-division multiple access [PDF]
, 2009 At present there is considerable interest in the use of single carrier frequency-division multiple access. This interest is justified by the inherent single carrier structure of the SC-FDMA scheme, which is more robust against phase noise and has a lower
Nix, AR, Noune, MB
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Advanced Science, EarlyView.An interpretable, unsupervised artificial intelligence framework identifies a 13‐cellular morphometric biomarker (CMB) signature from routine H&E whole‐slide images. Validated across 2,602 patients, the fixed signature generalizes across colorectal, gastric, and esophageal tissues without retraining, stratifies prognosis and precancerous lesion risk ...
Pin Wang +14 more
wiley +1 more source
From Sensing Mechanisms to System Co‐Design: Graphene‐Based Sensors and Readout Circuits
Advanced Science, EarlyView.This review establishes a unified PS–EQ–RF framework linking graphene sensing mechanisms, native electrical outputs, and output‐specific readout circuits. Voltage‐, current‐, resistance‐, and capacitance‐type sensing systems are systematically classified to guide architecture selection, low‐noise design, system co‐design, and practical integration ...
Jinduo Zhang +5 more
wiley +1 more source
Adapting DVB-SH system parameters to mobile environments [PDF]
, 2011 A performance analysis of the digital video broadcasting - satellite to handheld (DVB-SH) system in presence of ground mobile terminals (GMTs) is presented. The paper focuses on the Doppler spread issue.
Escrig, Benoît +2 more
core
Orthogonal Frequency Division Multiplexing Theory and Challenges
, 2022 Orthogonal Frequency Division Multiplexing (OFDM) has become the modulation technique used inseveral present and future communication standards. It is tolerant to frequency selective channels and provides high data rates. In this paper we investigate the
M. T. Abdalla, Ghassan
core +1 more source
Advanced Science, EarlyView.Temozolomide treatment activates GSK3β, driving DNMT1 phosphorylation, destabilization, and CD47 promoter hypomethylation in glioblastoma. This epigenetic shift upregulates CD47, enabling TMZ‐treated GBM cells to evade macrophage phagocytosis, survive chemotherapy, and acquire resistance.
Jie Li +11 more
wiley +1 more source
Key Technologies in Fiber-optic Networks and Its Development Trend
Kongzhi Yu Xinxi Jishu, 2019 It discussed the key enabling technologies in modern fiber-optic systems, especially the applications of digital signal processing (DSP) technologies for compensating the detrimental effects in the optical fiber. In particular, we showed how the advanced
OUYANG Xing, CHEN Gaohua
doaj