Results 91 to 100 of about 76,661 (236)
, 2019 In this article, we propose an index modulation system suitable for optical communications, based on jointly driving the time and frequency of the signal: an index-time frequency hopping (I-TFH) system.
Escribano, Francisco J. +3 more
core +1 more source
Concurrent Sensing and Communications Based on Intelligent Metasurfaces
Advanced Electronic Materials, Volume 12, Issue 2, 21 January 2026.An IM‐assisted concurrent ISAC scheme to exploit the otherwise wasted energy inherent in high‐order 16‐APSK DAM, to realize wireless gesture recognition thereby enabling efficient resource sharing for C‐ISAC. This architecture offers promising opportunities for next‐generation mobile internet, embodied intelligence, smart homes, smart factories, and ...
Hanting Zhao +8 more
wiley +1 more source
Optics Express, 2018 We demonstrate transmission of a probabilistically shaped polarization-division multiplexed 3-GBd 4096-QAM signal over up to 200 km of backward Raman amplified Corning® Vascade® EX2000 fiber.
S. Olsson +5 more
semanticscholar +1 more source
Psychological Resilience and Associated Factors in Cancer Patients: A Cross‐Sectional Analysis
Cancer Reports, Volume 9, Issue 1, January 2026.ABSTRACT Background Cancer remains one of the leading global health problems, with treatments that can compromise patients' quality of life. Aims This study aimed to determine the prevalence and characteristics of resilience in cancer patients and to analyze the influence of psychological and social factors on disease perception. Methods and Results An
Marta Esteban Blanco +6 more
wiley +1 more source
Soft-Decision Star-QAM Aided BICM-ID [PDF]
IEEE Signal Processing Letters, 2011 Differentially detected noncoherent Star Quadrature Amplitude Modulation (Star-QAM) is ideal for low-complexity wireless communications, since it dispenses with high-complexity channel estimation. We conceive soft-decision based demodulation for 16-level Star-QAM (16-StQAM), which is then invoked for iterative detection aided Iteratively-Detected Bit ...
Liang, Dandan +2 more
openaire +2 more sources
Tracer Hydrology Practices, Challenges, and Opportunities Across Latin America and the Caribbean
Hydrological Processes, Volume 40, Issue 1, January 2026.Tracer monitoring characteristics across the LAC region: overview of sampled hydrologic systems, commonly used tracers, routine and event‐based sampling strategies, integration with hydrometric measurements, and monitoring durations. ABSTRACT Tracer hydrology in Latin America and the Caribbean has made significant progress in recent decades, largely ...
Ricardo Sánchez‐Murillo +47 more
wiley +1 more source
IEEE Access, 2019 A novel spectrally efficient optical transmission in a passive optical network (PON) with hexagonal quadrature amplitude modulation (QAM)-based adaptive modulated optical (AMO) orthogonal frequency division multiplexing (OFDM) is proposed and ...
Hyoung Joon Park +3 more
doaj +1 more source
A Supervised Learning Method for High‐Performance Channel State Information Estimation
IET Communications, Volume 20, Issue 1, January/December 2026.This paper proposes a deep neural network (DNN)‐based method for channel state information (CSI) estimation, incorporating a Discrete Fourier Transform (DFT) step to reduce noise impact and improve learning accuracy. Simulation results demonstrate that the proposed method achieves superior channel estimation performance, particularly in noisy wireless ...
Tianle Han, Yongwei Zhang, Murat Temiz
wiley +1 more source
Detect-and-forward relaying aided cooperative spatial modulation for wireless networks
, 2013 A novel detect-and-forward (DeF) relaying aided cooperative SM scheme is proposed, which is capable of striking a flexible tradeoff in terms of the achievable bit error ratio (BER), complexity and unequal error protection (UEP).
Dong, Binhong +6 more
core +1 more source
An Energy‐Tiered Clustering‐Based Blind Detector for RIS‐RSM Systems
IET Communications, Volume 20, Issue 1, January/December 2026.This paper proposes an energy‐tiered structure initialization (ETSI) algorithm for blind detection in reconfigurable intelligent surface (RIS)‐assisted spatial modulation systems. By decomposing the modulation constellation into multiple energy tiers and leveraging structured prototype initialization with tier‐normalized refinement, ETSI effectively ...
Lijuan Zhang +2 more
wiley +1 more source