Results 51 to 60 of about 708 (167)
Orthogonal frequency division multiplexing with cascade index modulation
IET Communications, 2022 As an emerging technique, index modulation (IM) can improve the system bit error rate (BER) performance due to the robustness of index bits over conventional modulated symbol bits.
Zeng Hu +3 more
doaj +1 more source
Advanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti +6 more
wiley +1 more source
Low-Complexity Subcarrier-Wise Detection for MIMO-OFDM With Index Modulation
IEEE Access, 2017 Multiple-input multiple-output orthogonal frequency division multiplexing with index modulation (MIMO-OFDM-IM) is a relatively new multicarrier transmission technique for the MIMO systems to achieve both energy and spectral efficiency.
Zeng Hu +5 more
doaj +1 more source
Frequency Synchronization in Frequency Domain OFDM-IM based WLAN Systems
Journal of Communications Software and Systems, 2023 The next-generation of wireless local area network systems are being conceptualized with new applications, smart devices and use cases which mandate unprecedented levels of high data rates, spectral efficiency, reliability, low latency and high energy ...
Lalitha H, Navin Kumar
doaj +1 more source
Alzheimer's &Dementia, Volume 22, Issue 1, January 2026.Abstract INTRODUCTION White matter hyperintensities (WMHs) are strongly associated with cognitive decline and dementia, but whether asymptomatic individuals with moderate‐to‐severe WMHs (msWMHs) are truly cognitively intact, particularly in visual short‐term memory (VSTM), remains unclear.
Aonan Li +7 more
wiley +1 more source
Adaptive dual-mode OFDM with index modulation
, 2018 With the integration of the index modulation concept, the popular OFDM has gained an appealing new dimension. However, OFDM with index modulation (OFDM-IM) causes a decrease in data rate for higher order modulations due to its unused subcarriers ...
Aldırmaz Çolak, Sultan +2 more
core +1 more source
On the Phase Sequences and Permutation Functions in the SLM Scheme for OFDM-IM Systems
IEEE Access, 2020 In orthogonal frequency division multiplexing with index modulation (OFDM-IM), the active subcarriers can convey information bits by modulated symbols as well as their indices. OFDM-IM has attracted a great deal of attention from researchers by virtue of
Kee-Hoon Kim
doaj +1 more source
TranQuiL: Long Range Detection and Localization of Interference in Radio Quiet Zones
Radio Science, Volume 61, Issue 1, January 2026.Abstract Radio Quiet Zones (RQZs) have been established to prevent radio sources from causing harmful interference to sensitive radio telescopes, which study extremely faint cosmic radio waves. Even with strict regulations, such interference is growing due to the widespread use of consumer electronics, emitting in many different frequency bands ...
Atul Bansal +5 more
wiley +1 more source
A Novel Multi-Mode OFDM with Index Modulation
, 2023 Though Orthogonal Frequency Division Multiplexing (OFDM) is the most common modulation scheme, the conventional OFDM cannot meet the requirements of the high demand of throughput, Spectral Efficiency (SE), and lower energy consumption for the Next ...
Barua, Agnila
core
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