Results 91 to 100 of about 918 (208)

PAPR reduction using SLM-PTS-CT hybrid PAPR method for optical NOMA waveform. [PDF]

Heliyon, 2023
Kumar A, Rajagopal K, Alruwais N, Alshahrani HM, Mahgoub H, Othman KM.   +5 more
europepmc   +1 more source

PAPR Reduction in NC-OFDM/OQAM System using Nonlinear Companding Transform [PDF]

, 2019
278-281Since the inherent higher Peak-to-Average Power Ratio (PAPR) in Non- Continous Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (NC-OFDM/OQAM) is higher than that of conventional NC-OFDM systems, a novel ...
Sairam, M Satya, Renuka, N
core  

Pre-Flight Calibration of the Mars 2020 Rover Mastcam Zoom (Mastcam-Z) Multispectral, Stereoscopic Imager. [PDF]

Space Sci Rev, 2021
Hayes AG, Corlies P, Tate C, Barrington M, Bell JF, Maki JN, Caplinger M, Ravine M, Kinch KM, Herkenhoff K, Horgan B, Johnson J, Lemmon M, Paar G, Rice MS, Jensen E, Kubacki TM, Cloutis E, Deen R, Ehlmann BL, Lakdawalla E, Sullivan R, Winhold A, Parkinson A, Bailey Z, van Beek J, Caballo-Perucha P, Cisneros E, Dixon D, Donaldson C, Jensen OB, Kuik J, Lapo K, Magee A, Merusi M, Mollerup J, Scudder N, Seeger C, Stanish E, Starr M, Thompson M, Turenne N, Winchell K.   +42 more
europepmc   +1 more source

Improving bit error rate in optical wireless OFDM systems through hybrid companding and precoding strategies

EURASIP Journal on Wireless Communications and Networking
Visible light communication (VLC) is a promising wireless high-data-rate transmission technology that uses visible light. Optical Orthogonal Frequency Division Multiplexing (OOFDM)-based systems, especially asymmetrically clipped optical OFDM (ACO-OFDM),
Amal Yasser, Albashir A. Youssef, Mohamed Abaza   +2 more
doaj   +1 more source

An investigation into the application of companding to wireless OFDM systems

, 2008
The everyday increase in the demand for high speed mobile multimedia communications requires transmission techniques that are robust to channel hostilities and yet providing higher data rates. Orthogonal Frequency Division Multiplexing (OFDM) promises to
Vallavaraj, Athinarayanan
core  

Fano resonant optical coatings platform for full gamut and high purity structural colors. [PDF]

Nat Commun, 2023
ElKabbash M, Hoffman N, Lininger AR, Jalil SA, Letsou T, Hinczewski M, Strangi G, Guo C.   +7 more
europepmc   +1 more source

Research of Companding Transform Combines with Improving PTS

, 2011
The orthogonal frequency division multiplexing uses as a high-speed information transmission technology, with excellent anti-interference capabilities, which also has its own shortcomings, such as high peak-to-average power ratio.
Ming-xue, BI, Zi-jing, Zhang, Xiao Zhi-dong, Zhang Zi-jing, Zhi-dong, Xiao, BI Ming-xue   +5 more
core   +1 more source

Testbed Configuration for Minimizing PAPR in GFDM Systems Through a Novel Companding Approach

IEEE Access
Generalized frequency division multiplexing (GFDM) has emerged as a quintessential waveform candidate poised to meet the stringent requirements of next-generation wireless communication frameworks, addressing pivotal 5G physical layer challenges through ...
Sowbhagya Appalla, Siva Prasad Valluri, K. N. G. B. Yaswanth, Kishore Vejandla, Chakravarthy Gunturu, Gundla Jagapathi, Nittala Noel Anurag Prashanth, A. V. Prabu   +7 more
doaj   +1 more source

Energy-Limited Joint Source-Channel Coding of Gaussian Sources over Gaussian Channels with Unknown Noise Level. [PDF]

Entropy (Basel), 2023
Lev O, Khina A.
europepmc   +1 more source

Underlying Security Transmission Design for Orthogonal Time Frequency Space (OTFS) Modulation. [PDF]

Sensors (Basel), 2022
Liang W, Liu X, Shi J, Li L, Hu J.
europepmc   +1 more source