High-Dimensional OFDM With In-Phase/Quadrature Index Modulation
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Access"
DOI: 10.1109/access.2021.3066852
Abstract: In this paper, we propose a new modulation scheme for wireless communications called high-dimensional orthogonal frequency division multiplexing with in-phase/quadrature index modulation (HD-OFDM-IQ-IM). In the proposed scheme, coordinate values of a symbol of the HD… read more here.
Keywords: modulation; phase quadrature; high dimensional; index ... See more keywords
In-Phase and Quadrature Timing Mismatch Estimation and Compensation in Millimeter-Wave Communication Systems
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2017.2696947
Abstract: The emerging millimeter-wave (mm-wave) MIMO systems are subject to strong radio frequency (RF) distortions and their compensation is crucial to realize such systems. In the existing literature, several estimation and compensation schemes have been proposed… read more here.
Keywords: estimation; iqtm; millimeter wave; phase quadrature ... See more keywords
Synchronous in-phase and quadrature demodulation technique for resonant micro-optic gyroscope.
Sign Up to like & getrecommendations! Published in 2019 at "Applied optics"
DOI: 10.1364/ao.58.005050
Abstract: The phase modulation and demodulation technique is widely used in resonant optical gyroscopes to accurately detect resonance frequencies, which directly affect gyro sensitivity. In order to overcome the influences of the system phase fluctuations, an… read more here.
Keywords: phase quadrature; demodulation; demodulation technique; quadrature demodulation ... See more keywords
Low-complexity and blind receiver in-phase/quadrature imbalances compensation and estimation in the frequency domain for high-order modulation formats.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.459394
Abstract: A frequency domain (FD) 4×2 multi-input and multi-output (MIMO) equalizer based on radially directed equalizer is proposed to compensate receiver in-phase/quadrature (IQ) imbalances of M-ary quadrature amplitude modulation signals. This algorithm has a significantly lower… read more here.
Keywords: equalizer; frequency domain; receiver phase; frequency ... See more keywords
Phase-quadrature quantum imaging with undetected photons.
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DOI: 10.1364/oe.471837
Abstract: Sensing with undetected photons allows access to spectral regions with simultaneous detection of photons of another region and is based on nonlinear interferometry. To obtain the full information of a sample, the corresponding interferogram has… read more here.
Keywords: undetected photons; imaging undetected; optics; quadrature quantum ... See more keywords