Results 41 to 50 of about 5,341,111 (402)
On the index of reducibility in Noetherian modules [PDF]
Journal of Pure and Applied Algebra, 2015 Let $M$ be a finitely generated module over a Noetherian ring $R$ and $N$ a submodule. The index of reducibility ir$_M(N)$ is the number of irreducible submodules that appear in an irredundant irreducible decomposition of $N$ (this number is well defined by a classical result of Emmy Noether). Then the main results of this paper are: (1) $\mathrm{ir}_M(
Nguyen Tu Cuong +2 more
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Enhanced Coordinate Interleaved OFDM With Index Modulation
IEEE Access, 2017 Orthogonal frequency-division multiplexing with index modulation (OFDM-IM) has attracted much attention in recent years. In OFDM-IM, the information bits of a block are generally divided into several subblocks, each of which is further split into two ...
Yun Liu +5 more
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IEEE Photonics Journal, 2022 This paper investigates optical orthogonal frequency division multiplexing (O-OFDM) systems with index modulation (IM) based on discrete Hartley transform (DHT) for visible light communications (VLC). An interesting trade-off between spectral efficiency (
Xian-Ying Xu, Qi Zhang, Dian-Wu Yue
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Refractive Index Modulation in Monolayer Molybdenum Diselenide.
Nano letters (Print), 2021 Two-dimensional transition metal dichalcogenides are promising candidates for ultrathin light modulators due to their highly tunable excitonic resonances at visible and near-infrared wavelengths. At cryogenic temperatures, large excitonic reflectivity in
Melissa Li +3 more
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Index-modules and applications [PDF]
Manuscripta Mathematica, 2011 15 pages, to appear in manuscripta ...
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Multiwavelength operation of erbium-doped fiber lasers by periodic filtering and phase modulation [PDF]
, 2009 This paper explains the principles behind multiwavelength operation of an erbium-doped fiber laser (EDFL) under the combined effect of cavity phase modulation and periodic wavelength filtering.
Mirza, M.A., Stewart, G.
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Dual-Mode Index Modulation Aided OFDM
IEEE Access, 2017 Index modulation has become a promising technique in the context of orthogonal frequency division multiplexing (OFDM), whereby the specific activation of the frequency domain subcarriers is used for implicitly conveying extra information, hence improving
Tianqi Mao +4 more
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Circular Convolution Filter Bank Multicarrier (FBMC) System with Index Modulation [PDF]
, 2017 Orthogonal frequency division multiplexing with index modulation (OFDM-IM), which uses the subcarrier indices as a source of information, has attracted considerable interest recently.
Yu, Tianhang +4 more
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A Semidefinite Relaxation Approach to OFDM-IM Detection in Rapidly Time-Varying Channels
IEEE Access, 2018 In this paper, the signal detection of orthogonal frequency division multiplexing with index modulation (OFDM-IM) in the rapidly time-varying channel is studied.
Jianping Zheng, Hongmei Lv
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Tone-Index Multisine Modulation for SWIPT [PDF]
IEEE Signal Processing Letters, 2019 We propose a new simultaneous wireless information and power transfer (SWIPT) technique that embeds information bits in the tone-index of multisine waveforms. By varying the number of subcarriers of the transmitted bandwidth-constrained multisine signal, the proposed scheme enables efficient radio-frequency energy harvesting and low-complexity ...
Krikidis, Ioannis +3 more
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