Results 61 to 70 of about 918 (208)

Enhancing PAPR reduction for FBMC-OQAM systems by joint both tone reservation and companding methods

, 2021
As all multi-carrier designs FBMC-OQAM signal suffers from large peak-toaverage power ratio (PAPR). There are divers PAPR reduction methods to solve this problem. Tone reservation (TR) scheme is one of the most famous PAPR reduction techniques in which a
Bendimerad, Yassine Mohammed, Bendimerad, Fathi Tarik, Senhadji, Salima, Tarik Bendimerad, Fathi   +3 more
core   +1 more source

Two-Stage Companding Scheme to Reduce Peak-to-Average Power Ratio for Safety Transportation Scenarios

IEEE Access, 2019
Reliable wireless data transmission in intelligent transportation systems (ITS) has drawn a wide concern in recent years. As an efficient wireless transmission technology, multi-carrier communication (MCM) finds its way in many applications. However, the
Jun Hou, Wei Wang, Yang Zhang, Fei Hui, Xinyi Liu, Xiangmo Zhao   +5 more
doaj   +1 more source

Companding through shaped superconductors

, 1998
Companding has been performed through the use of a shaped superconductor and a design procedure for arriving at the required profile of the superconductor to obtain the required law of companding as ...
Satyam, M, Narayana, T Badri
core  

THE REDUCTION OF PAPR IN OFDM BY USING NEW COMPANDING TRANSFORM

, 2020
The main drawback of the OFDM is its high peak to average power ratio(PAPR).There are several PAPR reduction techniques. Among the various PAPR reduction techniques, companding transform is attractive for its simplicity and effectiveness.
RAMANAIDU, K., NAGARAJU, T.
core   +1 more source

Companding in signal processing

Electronics Letters, 1990
The use of companding in signal processing is considered. The applications discussed include noise reduction as well as increasing selectivity in single sinusoid detection.
Y.P. Tsividis, V. Gopinathan, L. TóTh
openaire   +1 more source

Manfaat Companding pada PAPR Sistem OFDM

, 2010
Penjamakan pembagi frekuensi orthogonal (Orthogonal Frequency Division Multiplexing, OFDM) merupakan teknik modulasi yang banyak digunakan pada teknologi telekomunikasi saat ini dan yang akan datang. OFDM memi/iki kelemahan yaitu PAPR yang tinggi.
Arik Kriswanto, Budi Setiyanto, Samiadji Herdjunanto
core  

Piecewise-linear companding transform for peak-to-average power ratio reduction of OFDM signals

Tongxin xuebao, 2011
In order to reduce the peak-to-average power ratio（PAPR） of orthogonal frequency division multiplexing（OFDM） signals,a piecewise-linear companding transform was proposed.Small amplitudes were multiplied by a scale factor,while large ones were not only ...
YANG Pin-lu, HU Ai-qun
doaj   +2 more sources

Reduction of peak-to-average power ratio for FBMC/OQAM signals under the general linear non-symmetrical companding transform with a Laplace distribution

ICT Express
The filter bank multi-carrier with offset quadrature amplitude modulation (FBMC/OQAM) is extensively utilized in communication scenarios characterized by severe Doppler interference, owing its remarkable ability for precise time–frequency positioning ...
Xinyu Liu, Hongkun Zhou, Xiyun Ge, Miao Yu, Lei Liu   +4 more
doaj   +1 more source

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, Mishal Al-Gharabally, Aparna Krishna   +2 more
doaj   +1 more source

Optimal Adaptive Hyperbolic Companding for OFDM

, 2007
In this paper, we derive and analyze a companding algorithm based on the hyperbolic tangent and inverse hyperbolic tangent functions for use in orthogonal frequency division multiplexing (OFDM) transceivers.
Darryn Lowe (20117682), Xiaojing Huang (20118225)   +1 more
core