Results 31 to 40 of about 29,940 (236)

Data Detection and Code Channel Allocation for Frequency-Domain Spread ACO-OFDM Systems Over Indoor Diffuse Wireless Channels [PDF]

open access: yes, 2014
Future optical wireless communication systems promise to provide high-speed data transmission in indoor diffuse environments. This paper considers frequency-domain spread asymmetrically clipped optical orthogonal frequency-division multiplexing (ACOOFDM)
Chen, Ming   +4 more
core   +1 more source

PAPR Constrained Power Allocation for Iterative Frequency Domain Multiuser SIMO Detector [PDF]

open access: yes, 2014
Peak to average power ratio (PAPR) constrained power allocation in single carrier multiuser (MU) single-input multiple-output (SIMO) systems with iterative frequency domain (FD) soft cancelation (SC) minimum mean squared error (MMSE) equalization is ...
Karjalainen, Juha   +3 more
core   +2 more sources

CLIPPING TECHNIQUES FOR PAPR REDUCTION IN FBMC/OQAM SYSTEM OVER DOUBLY-SELECTIVE CHANNELS

open access: yesJournal of Engineering and Sustainable Development, 2021
One of the major disadvantages of Filter Bank Multicarrier (FBMC) is high Peak-to-Average Power Ratio (PAPR) of transmitted signal. As a result, nonlinear power amplifier (PA) properties, considerable out-of-band and the in-band distortion types take ...
Noor Q. Lateef, Fadhil S. Hasan
doaj   +3 more sources

Peak-to-average power ratio of good codes for Gaussian channel [PDF]

open access: yes, 2014
Consider a problem of forward error-correction for the additive white Gaussian noise (AWGN) channel. For finite blocklength codes the backoff from the channel capacity is inversely proportional to the square root of the blocklength.
Polyanskiy, Yury, Wu, Yihong
core   +2 more sources

Design of a 900 MHz Dual-Mode SWIPT for Low-Power IoT Devices

open access: yesSensors, 2019
This paper presents a duty cycle-based, dual-mode simultaneous wireless information and power transceiver (SWIPT) for Internet of Things (IoT) devices in which a sensor node monitors the received power and adaptively controls the single-tone or multitone
Hamed Abbasizadeh   +9 more
doaj   +1 more source

Joint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA [PDF]

open access: yes, 2010
Single-Carrier Frequency Division Multiple Access (SC-FDMA) has been selected as the uplink transmission scheme in the 3GPP Long Term Evolution standard.
Nix, AR, Noune, MB
core   +2 more sources

PAPR: Proximity Attention Point Rendering

open access: yes, 2023
Learning accurate and parsimonious point cloud representations of scene surfaces from scratch remains a challenge in 3D representation learning. Existing point-based methods often suffer from the vanishing gradient problem or require a large number of points to accurately model scene geometry and texture.
Zhang, Yanshu   +3 more
openaire   +2 more sources

Modified DRM+ signal generation algorithm with reduced crest factor

open access: yesФизика волновых процессов и радиотехнические системы, 2020
To reduce the crest factor in the DRM+ system due to the limitations imposed by the standard the peak limiting method (clipping) and the window weighting method, which are based on signal distortion, are widely used.
Konstantin Yu. Morozov
doaj   +1 more source

Walsh‐Hadamard‐transform‐based SC‐FDMA system using WARP hardware

open access: yesETRI Journal, 2021
Single‐carrier frequency division multiple access (SC‐FDMA) is currently being used in long‐term evolution uplink communications owing to its low peak‐to‐average power ratio (PAPR). This study proposes a new transceiver design for an SC‐FDMA system based
Shri Ramtej Kondamuri, Sundru Anuradha
doaj   +1 more source

REVIEW PAPER FOR GFDM: ADVANCEMENT AND PERFORMANCE ANALYSIS FOR 5G NETWORK

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
Generalized frequency division multiplexing (GFDM) is one of the most promising candidate Multiple Access technologies for the 5G of wireless communication, as it shows great potential and benefits to help create a networked society for the next ...
Zahraa Q. Haban, Ahmed G. Waddy
doaj   +1 more source

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