Search Results - "Almeida, Danilo B. T."
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On the Adaptive Modulation for User-Centric Cell-Free Massive MIMO Systems
Published in IEEE access (01-01-2024)“…The cell-free (CF) systems are a key technology for future wireless networks, which exploit the scenario spatial macro-diversity to offer high channel capacity…”
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Journal Article -
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Cascaded Double Beaulieu-Xie Fading Channels
Published in IEEE communications letters (01-10-2020)“…In this letter, a mathematical characterization for the cascaded double Beaulieu-Xie (BX) fading model is presented. Exact and new expressions are determined…”
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3
Beaulieu-Xie Phase-Envelope Joint and Bivariate Distributions
Published in IEEE communications letters (01-05-2021)“…A new, exact and closed-form expression is presented for the Beaulieu-Xie (BX) phase-envelope joint distribution. In addition, bivariate statistics are also…”
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Bit error probability of the M-QAM scheme subject to multilevel (double) gated additive white Gaussian noise and Nakagami-m fading
Published in Wireless networks (01-10-2019)“…In this paper, noise models called multilevel gated additive white Gaussian noise (GAWGN) and multilevel double gated additive white Gaussian noise ( G 2 AWGN)…”
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SEP of the M-ary θ-QAM signals under η-μ fading and AWGN noise in a communication system using spatial diversity
Published in Wireless networks (01-08-2020)“…In this paper, an upper bound on the symbol error probability (SEP) of the M -ary θ -quadrature amplitude modulation scheme, in a channel subject to additive…”
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6
Bit error probability of the M‐QAM scheme under η‐μ fading and impulsive noise in a communication system using spatial diversity
Published in International journal of communication systems (25-07-2019)“…Summary This paper presents a new and exact expression for the bit error probability (BEP) of the square M‐ary quadrature amplitude modulation (M‐QAM) scheme,…”
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New closed-form expressions for SNR estimates of Nakagami fading channels by the method of moments
Published in Telecommunication systems (01-11-2018)“…Method of moments has been a parameter estimation technique appropriate to calculate signal-to-noise ratio (SNR) estimates in fading channel models in which an…”
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On the BEP Analysis of M-QAM in a Frequency Non-Selective Beaulieu-Xie Fading Channels
Published in 2021 15th European Conference on Antennas and Propagation (EuCAP) (22-03-2021)“…In this paper, new and exact expressions are presented for the bit error probability (BEP) of M-ary quadrature amplitude modulation (M-QAM), considering a…”
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Conference Proceeding -
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SEP of the M-ary θ-QAM Signals Under Nakagami-q Fading and AWGN Noise
Published in 2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) (10-11-2019)“…In this article, an upper bound is obtained, by means of the union bound (UB), for the symbol error probability (SEP) of the M-ary \theta-quadrature amplitude…”
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Conference Proceeding -
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LLS Estimation of the Channel Gain in a Scenario of Impulsive Noise and Generalized Fading
Published in 2019 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) (10-11-2019)“…In this article, Linear Least Squares (LLS) is considered to estimate the instantaneous complex gain of a channel subject to impulsive noise, characterized by…”
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Conference Proceeding -
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On the BEP and Outage Probability Under Cascaded Double Correlated [Formula Omitted]-[Formula Omitted] Fading Channels
Published in IEEE transactions on vehicular technology (01-01-2022)“…In this article, a new expression for the joint moment generating function (MGF) of the signal-to-noise ratio (SNR) considering correlated [Formula…”
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12
Capacity analysis of shadowed Beaulieu-Xie fading channels
Published in Digital signal processing (15-04-2022)“…In this paper, we provide a capacity analysis for the shadowed Beaulieu-Xie (SBX) fading model, under different transmission policies. From this analysis, we…”
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13
Outage Probability of the Product of Two Beaulieu–Xie, [Formula Omitted]–[Formula Omitted], [Formula Omitted]–[Formula Omitted], or [Formula Omitted]–[Formula Omitted] Random Variables
Published in IEEE antennas and wireless propagation letters (01-01-2020)“…In this letter, new and simple expressions are presented for the outage probability (OP) of the product of two Beaulieu–Xie, [Formula Omitted]–[Formula…”
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14
Outage Probability of the Product of Two Beaulieu-Xie, \eta- \mu, \kappa- \mu, or \alpha- \mu Random Variables
Published in IEEE antennas and wireless propagation letters (01-12-2020)“…In this letter, new and simple expressions are presented for the outage probability (OP) of the product of two Beaulieu-Xie, <inline-formula><tex-math…”
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Journal Article -
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On the BEP and Outage Probability Under Cascaded Double Correlated \eta- \mu Fading Channels
Published in IEEE transactions on vehicular technology (01-02-2022)“…In this article, a new expression for the joint moment generating function (MGF) of the signal-to-noise ratio (SNR) considering correlated…”
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Journal Article -
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On the BEP analysis of M-QAM and R-QAM under cascaded double η-μ, κ-μ or α-μ fading channels
Published in Digital signal processing (01-12-2020)“…This article presents new expressions for the bit error probability (BEP) of the M-ary quadrature amplitude modulation (M-QAM) and rectangular QAM (R-QAM)…”
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17
Bit error probability of M-QAM under η-μ or κ-μ fading and impulsive noise gated by a signal characterized by a Markov process or Poisson process
Published in Digital signal processing (01-05-2020)“…This article presents exact expressions for the bit error probability (BEP) of the M-ary quadrature amplitude modulation (M-QAM) scheme subject to η-μ or κ-μ…”
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Journal Article -
18
Bit error probability of the M‐QAM scheme subject to multilevel double gated additive white Gaussian noise and η‐μ, κ‐μ, or α‐μ fading
Published in Transactions on emerging telecommunications technologies (01-12-2019)“…This paper presents new and exact expressions for the bit error probability (BEP) of the square M‐ary quadrature amplitude modulation scheme subject to η‐μ,…”
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