A 2.5-GHz asymmetric multilevel outphasing power amplifier in 65-nm CMOS [PDF]
, 2011 We present a high-efficiency transmitter based on asymmetric multilevel outphasing (AMO). AMO transmitters improve their efficiency over LINC (linear amplification using nonlinear components) transmitters by switching the output envelopes of the power ...
Barton, Taylor W. +5 more
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Reduksi Peak-To-Average Power Ratio Pada Sistem STBC MIMO-OFDM Dengan Metode Selected Mapping Dan Partial Transmit Sequence [PDF]
, 2012 Teknik OFDM merupakan teknik multicarrier yang mengefisienkan bandwidth. Penggunaan teknik OFDM dapat mengatasi multipath fading dan intersymbol interference (ISI).
Maddanaca, A. (Andi)
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Joint Optimization of Power Allocation and Training Duration for Uplink Multiuser MIMO Communications [PDF]
, 2014 In this paper, we consider a multiuser multiple-input multiple-output (MU-MIMO) communication system between a base station equipped with multiple antennas and multiple mobile users each equipped with a single antenna.
Lu, Songtao +2 more
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PEAK-TO-AVERAGE POWER RATIO REDUCTION OF OFDM SIGANLS
International Journal of Research in Engineering and Technology, 2012 Orthogonal frequency division multiplexing (OFDM) is a form of multicarrier modulation technique with high spectral efficiency and immunity to interference. Despite of many advantages the main disadvantage of OFDM is that the time domain of OFDM signal which is a sum of subcarrier sinusoids leads to high Peak-to-Average power ratio (PAPR).
openaire +1 more source
Photonics, 2021 We compare the performances of three previously proposed methods to reduce the peak-to-average power ratio (PAPR) of the carrier-suppressed optical single-sideband (OSSB-SC) signal. PAPR of OSSB-SC signal becomes high due to the peaky Hilbert-transformed
K. I. Amila Sampath +2 more
doaj +1 more source
Power savings analysis of clipping and filtering method in OFDM systems [PDF]
, 2008 The clipping and filtering method is analyzed in terms of power savings. The analysis takes account of the gain in the amplifier efficiency due to peak-to-average-power-ratio (PAPR) reduction.
Al-Qahtani, F +3 more
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Performance Analysis of Hybrid Peak to Average Power Ratio Reduction Techniques in 5G UFMC Systems
IEEE Access, 2019 The universal filtered multi-carrier (UFMC) technique has been proposed as a prominent waveform candidate for fifth generation (5G) communication techniques.
Ali F. Almutairi +2 more
doaj +1 more source
, 2017 This paper studies energy efficiency (EE) and average throughput maximization for cognitive radio systems in the presence of unslotted primary users. It is assumed that primary user activity follows an ON-OFF alternating renewal process.
Gursoy, M. Cenk +2 more
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Closed-form approximations of the peak-to-average power ratio distribution for multi-carrier modulation and their applications [PDF]
, 2014 International audienceThe theoretical analysis of the peak-to-average power ratio (PAPR) distribution for an orthogonal frequency division multiplexing (OFDM) system, depends on the particular waveform considered in the modulation system.
Chafii, Marwa +2 more
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Peak-to-Average Power Ratio Reduction of FBMC/OQAM Signal Using a Joint Optimization Scheme
IEEE Access, 2017 Owing to the signal structure difference between the filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) and the orthogonal frequency-division multiplexing (OFDM) systems, the existing technologies to reduce the peak-to ...
Junhui Zhao, Shanjin Ni, Yi Gong
doaj +1 more source