Results 1 to 10 of about 522,687 (294)
Phase Detection and Modulation Improvement for Active Load Modulation during Continuous Transmission [PDF]
Sensors, 2021 The paper covers one of the communication technologies used in wireless sensor networks. We have presented improvements in existing radio frequency identification (RFID) systems to address the problem of the phase selection in active load modulation (ALM)
Nejc Suhadolnik +5 more
doaj +3 more sources
Continuous Charge Modulated Diagonal Phase in Manganites [PDF]
Physical Review Letters, 2004 We present a novel ground state that explain the continuous modulated charge diagonal order recently observed in manganese oxides, at hole densities $x$ larger than one half. In this diagonal phase the charge is modulated with a predominant Fourier component inversely proportional to $1-x$.
C. H. Chen +3 more
openaire +4 more sources
Asymptotic Security of Continuous-Variable Quantum Key Distribution with a Discrete Modulation
Physical Review X, 2019 We establish a lower bound on the asymptotic secret key rate of continuous-variable quantum key distribution with a discrete modulation of coherent states.
Shouvik Ghorai +3 more
doaj +4 more sources
Low Complexity Noncoherent Iterative Detector for Continuous Phase Modulation Systems [PDF]
Radioengineering, 2014 This paper focuses on the noncoherent iterative detection of continuous phase modulation. A class of simplified receivers based on Principal-Component-Analysis (PCA) and Exponential-Window (EW) is developed. The proposed receiver is evaluated in terms of
Bing Li, B. M. Bai
doaj +2 more sources
Continuous-Phase Modulation for DFT-Spread Localized OFDM
IEEE Open Journal of the Communications Society, 2021 Massive machine-type communications to support a large number of low-cost, low-power, and/or low-rate radio-frequency transceivers such as Internet-of-Things (IoT) devices is a major usage scenario of the 5G mobile communication system.
Jeonghoon Choi +2 more
doaj +1 more source
Continuous Phase-Modulated Halftones [PDF]
IEEE Transactions on Image Processing, 2009 A generalization of periodic clustered-dot halftones is proposed, wherein the phase of the halftone spots is modulated using a secondary signal. The process is accomplished by using an analytic halftone threshold function that allows halftones to be generated with controlled phase variation in different regions of the printed page.
Basak, Oztan, Gaurav, Sharma
openaire +2 more sources
Spectrally-Efficient Continuous Phase Modulations [PDF]
2008 IEEE International Symposium on Information Theory, 2008 We investigate the spectral efficiency of continuous phase modulations (CPMs). To this end, we need an effective bandwidth definition for a CPM signal, whose power spectral density has in principle an infinite support. The definition we adopt is based on the spacing between adjacent carriers in a frequency division multiplexed CPM system.
Alan BARBIERI +2 more
openaire +2 more sources
Serially Concatenated Schemes for Single Sideband Continuous Phase Modulation
IEEE Open Journal of the Communications Society, 2023 This paper investigates serially concatenated (SC) and interleaved transmission schemes for a new class of continuous phase modulation (CPM), which has the property being a single sideband (SSB). This new CPM is commonly called Single Side-Band Frequency
Abhishek Kumar, Haifa Fares, Yves Louet
doaj +1 more source
1.8 m/0.5 s Resolution Coherent Doppler Wind Lidar Using Continuous Phase Modulation
IEEE Photonics Journal, 2022 A high-spatial-resolution coherent Doppler wind lidar (CDWL) with high modulation efficiency is reported. The pseudo-random phase coding (PRPC) links the spatial resolution to the modulation rate but suffers from the non-rectangular transition caused by ...
Yunpeng Zhang +3 more
doaj +1 more source
Phase Noise Resilient Three-Level Continuous-Phase Modulation for DFT-Spread OFDM
IEEE Open Journal of the Communications Society, 2022 In this paper, a novel waveform with low peak-to-average power ratio (PAPR) and high robustness against phase noise (PN) is presented. It follows the discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) signal model ...
Markku Renfors +4 more
doaj +1 more source