Results 51 to 60 of about 88,007,393 (199)

Comparison of Various Peak To Average Power Reduction Techniques [PDF]

, 2012
In this paper we study various peak to average power reduction techniques and find the advantages and disadvantages of these techniques.The main disadvantage is high PAPR in transmission for high-speed transmission due to its spectrum efficiency and ...
Ahlawat, Amit
core   +1 more source

Pilot‐Based Iterative Path Estimation and Maximum Ratio Combining (MRC)–Based Signal Detection of Orthogonal Time–Frequency Space (OTFS) Modulation for 6G in Fractional Doppler Channels

Journal of Computer Networks and Communications, Volume 2026, Issue 1, 2026.
The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere, Zelalem Hailu Gebeyehu, Sohini Basu Roy   +2 more
wiley   +1 more source

Peak to average power ratio reduction techniques based on chirp selection for single and multi‐user orthogonal chirp division multiplexing system

IET Signal Processing, 2023
Abstract This article deals with peak to average power (PAPR) reduction in a single and multi‐user orthogonal chirp division multiplexing (OCDM) context. Two methods for PAPR reduction based on the selection of the frequency variation (up or down) of the chirps are first presented in a single user system.
openaire   +3 more sources

Next‐Generation SIMO SC‐FDMA–DMWT Systems With Adaptive EGC: Performance Enhancement in Correlated LTE‐Advanced Channels

Journal of Control Science and Engineering, Volume 2026, Issue 1, 2026.
Given the explosive increase in mobile data traffic, the wireless communication system of today and beyond has to be able to offer both high spectral efficiency and energy efficiency (EE) under challenging propagation environments such as deep indoor, high‐speed mobility, or tunneling. This work presents an improved structure of doing SIMO SC‐FDMA–DMWT
Mohammed Aboud Kadhim, Zahraa Ibrahim Sabere, Ahmed A. Thabit, Deepali   +3 more
wiley   +1 more source

Time Domain Optimization using Hadamard Matrix Based Phase Sequence and DCT with Classic Frequency Domain Partition Partial Transmitted Sequence(CFDP-PTS) Scheme for the Reduction of Peak to Average Power Ratio (PAPR) in OFDM System

Indian Journal of Science and Technology, 2016
Partial transmitted sequence (PTS) is the most important technique for the minimization of problem peak to average power ratio (PAPR) found in multicarrier system i.e., Orthogonal Frequency Division Multiplexing (OFDM). But PTS scheme undergo a very difficult and complex process of designing random phase sequences which are used for optimization of ...
Prabal Gupta, Balpreet Singh, Gursharanjeet Singh   +2 more
openaire   +3 more sources

A Novel Iterative-SLM Algorithm for PAPR Reduction in 5G Mobile Fronthaul Architecture

IEEE Photonics Journal, 2019
One of the main drawbacks of orthogonal frequency division multiplexing (OFDM) is the unpredictable significant increase in the peak-to-average power ratio (PAPR), due to the large dynamic range of the OFDM symbol waveforms.
Mohammed I. Al-Rayif, Hussein Seleem, Amr Ragheb, Saleh Alshebeili   +3 more
doaj   +1 more source

A Comprehensive Review of Battery‐Free Energy Efficient RF and Microwave Systems

Journal of Engineering, Volume 2026, Issue 1, 2026.
Battery‐free radiofrequency (RF) and microwave systems have emerged as a promising solution for enabling long‐lifetime, maintenance‐free wireless sensing and communication platforms by eliminating conventional battery dependence. These systems operate by harvesting ambient or dedicated electromagnetic energy, converting it to usable electrical power ...
Stella N. Arinze, Augustine O. Nwajana, Vijayanandh Raja   +2 more
wiley   +1 more source

Fast peak-power reduction for MIMO-OFDM systems with diversity [PDF]

, 2009
A robust peak-power reduction technique called active constellation extension (ACE) reduces the peak-to-average power ratio (PAPR) of single-input single-output (SISO) orthogonal frequency-division modulated (OFDM) signals by extending the outer ...
Tsiligkaridis, Theodoros
core  

Efficient PAPR reduction algorithm in OFDM based on nonlinear piecewise companding

Tongxin xuebao, 2021
Focusing on the high peak-to-average power ratio （PAPR） problem in orthogonal frequency division multiplexing （OFDM） systems， a generalized hybrid of rayleigh and sine distribution based nonlinear companding algorithm for PAPR reduction in OFDM systems ...
Zhitong XING, Yun LI, Deyi PENG, Bensi ZHANG, Kaiming LIU, Yuan’an LIU   +5 more
doaj   +2 more sources

Two-stage collaborative information interaction reliability improvement for the distribution grid

Frontiers in Energy Research
The impulse noise generated by a large volume of power electronics devices imposes a hazardous impact on information interaction reliability in low-voltage distribution grids.
Zhan Shi
doaj   +1 more source