Prediction of Lumen Depreciation and Color Shift for Phosphor-Converted White Light-Emitting Diodes Based on A Spectral Power Distribution Analysis Method
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DOI: 10.1109/access.2017.2716354
Abstract: The spectral power distribution (SPD) is considered as the figureprint of a light emitting diode (LED). Based on the analysis on its SPD, a method to predict both lumen depreciation and color shift for the… read more here.
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A Design of Broadband Circularly Polarized C-Shaped Slot Antenna With Sword-Shaped Radiator and Its Array for L/S-Band Applications
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DOI: 10.1109/access.2017.2788008
Abstract: In this paper, a novel wideband circularly polarized (CP) slot antenna and its array are presented. The antenna element consists of a C-shaped slot and a 50- $\Omega $ microstrip-fed port to achieve left-hand circular… read more here.
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Performance Analysis of Joint-Sparse Recovery from Multiple Measurement Vectors via Convex Optimization: Which Prior Information is Better?
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DOI: 10.1109/access.2018.2791580
Abstract: In sparse signal recovery of compressive sensing, the phase transition determines the edge, which separates successful recovery and failed recovery. The phase transition can be seen as an indicator and an intuitive way to judge,… read more here.
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Representative Skyline Queries With Total and Partial Order Domains Using US-ELM
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DOI: 10.1109/access.2018.2795040
Abstract: Skyline queries play an important role in multiple criteria decision making problems. A representative skyline set contains $k$ skyline points that can represent its full skyline set, which is more significant. The distance-based representative skyline… read more here.
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Bloomfield Model Based Signal Process for Networks
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DOI: 10.1109/access.2018.2820510
Abstract: This paper proposes a novel speech signal analysis approach based on the Bloomfield ( $BF$ ) model, and provides a formulation of a time-domain $BF$ model for speech signals with which speech signals can be… read more here.
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Theoretical Investigation of State Bistability Between Pure- and Mixed-Mode States in a 1550-nm VCSEL Under Parallel Optical Injection
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DOI: 10.1109/access.2018.2820678
Abstract: Based on the spin-flip model, state bistability (SB) between pure- and mixed-mode states in a 1550-nm vertical-cavity surface-emitting laser under parallel optical injection is theoretically investigated. The simulated results show that two types of SB… read more here.
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New Sufficient Conditions of Signal Recovery With Tight Frames via ${l}_1$ -Analysis Approach
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DOI: 10.1109/access.2018.2833121
Abstract: This paper discusses the recovery of signals that are nearly sparse with respect to a tight frame $D$ by means of the $l_{1}$ -analysis approach. We establish several new sufficient conditions regarding the $D$ -restricted… read more here.
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Bandpass Impedance Transformers With Extremely High Transforming Ratios Using $\Pi$ -Tapped Feeds
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DOI: 10.1109/access.2018.2837355
Abstract: Bandpass impedance transformers (BPIMTs) with extremely high transforming ratios by adopting the proposed $\Pi $ -tapped feeds are realized in this paper. $\Pi $ -tapped feeds composed of two shunt stubs and one-section line performing… read more here.
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On the Performance Analysis of WPT-Based Dual-Hop AF Relaying Networks in $\alpha$ - $\mu$ Fading
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DOI: 10.1109/access.2018.2850369
Abstract: In this paper, a two-hop amplify-and-forward relaying system, where an energy-constrained relay node entirely depends on the energy scavenged from the source signal, is investigated. This paper analyzes the performance of the energy-harvesting (EH) protocols,… read more here.
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Power Scaling Laws of Massive MIMO Full-Duplex Relaying With Hardware Impairments
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DOI: 10.1109/access.2018.2857496
Abstract: This paper considers a massive MIMO full-duplex relaying (FDR) system, in which multiple single-antenna sources simultaneously communicate with multiple single-antenna destinations using a single relay that is equipped with $N_{\mathrm {tx}}$ transmit antennas and $N_{\mathrm… read more here.
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N-Term Karatsuba Algorithm and its Application to Multiplier Designs for Special Trinomials
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DOI: 10.1109/access.2018.2859451
Abstract: In this paper, we propose a new type of non-recursive Mastrovito multiplier for $\text {GF}(2^{m})$ using an $n$ -term Karatsuba algorithm (KA), where $\text {GF}(2^{m})$ is defined by an irreducible trinomial, $x^{m}+x^{k}+1, m=nk$ . We… read more here.
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