Results 51 to 60 of about 275 (168)

A Review of Partial Transmit Sequence for PAPR Reduction in the OFDM Systems

IEEE Access, 2019
Orthogonal frequency division multiplexing (OFDM) is a superior technology for the high-speed data rate of wire-line and wireless communication systems.
Yasir Amer Jawhar, Lukman Audah, Montadar Abas Taher, Khairun Nidzam Ramli, Nor Shahida Mohd Shah, Mustafa Musa, Mustafa Sami Ahmed   +6 more
doaj   +1 more source

A Novel Companding-Based Hermitian Symmetry Free ACO-UFMC Scheme for IM/DD in Low-Power IoT-Centric Future Wireless Communications

IEEE Access
For optical communication, the transmitted signal must be real-valued that can be achieved by employing Hermitian symmetry (HS). But the HS results in increased power consumption and decreased spectral efficiency (SE). Therefore, a HS free asymmetrically
Vijaya Durga Chintala, Rani Deepika Balavendran Joseph, Subba Rao Suddapalli, Vinay K. Tiwari, Anuradha Sundru   +4 more
doaj   +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

PAPR reduction for FBMC/OQAM using hybrid scheme of different Precoding transform and mu-law companding

, 2017
The filter banks multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) is developing multicarrier modulation technique used in the next wireless communication system (5G).
Reem Ibrahim, Fatma Newagy, Imad Shaheen, Abdelhalim Zekry   +3 more
core   +1 more source

New Efficient PAPR Reduction Schemes in LTE OFDM Systems

, 2020
Orthogonal frequency division multiplexing (OFDM) is a prominent, new multicarrier modulation technology used with most 4G wireless communication systems.
saleem nokaiee (8722494)
core   +1 more source

The Research of Companding Transform for Peak-to-Average Power Ratio Reduction of OFDM Signals

, 2011
One of the main drawbacks of orthogonal frequency division multiplexing (OFDM) is the high peak-to-average power ratio (PAPR) of the OFDM signal. How to reduce the PAPR is the key to applying the technology of OFDM efficiently.
Yu Bo Duan, Xiu Yan Zhang, Lei Lei Pei, Wei Dong Wang   +3 more
core   +1 more source

PAPR Reduction Algorithm Based on Improved μ-law Companding Transform and PTS Technology

, 2014
: As a new multicarrier modulation system, orthogonal wavelet packet multiplexing (OWPM) system also has the problem of high peak to average power ratio (PAPR).
Xian Huang, Gewei Tan
core  

Reduction of Peak-to-average-power Ratio in OFDM Systems

, 2021
Large amplitude fluctuations causeserious issues in orthogonal frequencydivision multiplexing (OFDM) signals, when a nonlinear power amplifier (NLPA) has been utilized.
Narasimha Devani, Padala Pavan Kumar, Pillalamarri Sreesrinivas
core   +1 more source

On Channel Transforms to Enhance Reciprocity and Quantization in Physical-Layer Secret Key Generation

IEEE Access
Ensuring reliable and secure communications in the increasingly pervasive beyond $5{^{\text {th}}}$ generation (B5G) wireless networks is one of the key research challenges.
Ghalib Hussain, Syed Junaid Nawaz, Shurjeel Wyne, Mohammad N. Patwary   +3 more
doaj   +1 more source

Original data of figures for "Piecewise Companding Transform Assisted Optical-OFDM Systems for Indoor Visible Light Communications"

Dataset to support: Zhang, Hongming, Yang, Lie-Liang and Hanzo, Lajos (2016) Piecewise Companding Transform Assisted Optical-OFDM Systems for Indoor Visible Light Communications.
Zhang, Hongming, Yang, Lieliang, Hanzo, Lajos   +2 more
core   +1 more source