Results 31 to 40 of about 261,383 (301)

Multi-Carrier Waveform Design for Directional Modulation Under Peak to Average Power Ratio Constraint

open access: yesIEEE Access, 2019
Multi-carrier-based waveform design for directional modulation (DM) is studied, where simultaneous data transmission over multiple frequencies can be achieved, with given phase distribution at the main lobe and as random as possible over sidelobe regions
Bo Zhang, Wei Liu, Qiang Li
doaj   +1 more source

A peak-to-average power ratio reduction method for mixed-numerology multi-carrier systems

open access: yesDianxin kexue, 2023
In order to support diverse service demands of communication scenarios, 5G adopts the mixed-numerology system based on orthogonal frequency division multiplexing (OFDM).The mixed-numerology systems still have the problem of high peak-to-average power ...
Nan SHI   +4 more
doaj   +2 more sources

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

open access: yesIEEE 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   +5 more
doaj   +1 more source

Two novel nonlinear companding schemes with iterative receiver to reduce PAPR in multi-carrier modulation systems

open access: yes, 2006
Companding transform is an efficient and simple method to reduce the Peak-to-Average Power Ratio (PAPR) for Multi-Carrier Modulation (MCM) systems.
Guo, P, Yao, W, Qu, D, Song, Y, Jiang, T
core   +1 more source

Frequency-domain precoding for single carrier frequency-division multiple access [PDF]

open access: yes, 2009
At present there is considerable interest in the use of single carrier frequency-division multiple access. This interest is justified by the inherent single carrier structure of the SC-FDMA scheme, which is more robust against phase noise and has a lower
Nix, AR, Noune, MB
core   +1 more source

Partial Transmit Sequences for Peak-to-Average Power Ratio Reduction in Multiantenna OFDM

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
The major drawback of orthogonal frequency-division multiplexing (OFDM) is its high peak-to-average power ratio (PAR), which gets even more substantial if a transmitter with multiple antennas is considered.
Christian Siegl, Robert F. H. Fischer
doaj   +1 more source

The Problem of Peak-to-Average Power Ratio in OFDM Systems

open access: yesCoRR, 2015
8 ...
Martha C. Paredes Paredes   +1 more
openaire   +2 more sources

PEAK TO AVERAGE POWER RATIO REDUCTION TECHNIQUES

open access: yesInternational Journal of Computer Science and Mobile Computing, 2022
The most extensively used wireless communication system Multiple input multiple affair and orthogonal frequency division multiplexing because of their large benefits and advantages. MIMO OFDM has a major debit which makes the system noisy because of the harpoons in the transmitting signal. Harpoons produce noice and deformation. Different ways are used
T.V. Sripriya, D. Akhila, K. Shravan
openaire   +1 more source

Impact of radio resource allocation and pulse shaping on PAPR of SC-FDMA signals [PDF]

open access: yes, 2007
"Single Carrier Frequency Division Multiple Access" (SC-FDMA) is a strong candidate for uplink transmissions in the 3G Long Term Evolution (LTE) standard.
Nix, AR   +5 more
core   +1 more source

An intelligent genetic algorithm for PAPR reduction in a multi-carrier CDMA wireless system

open access: yes, 2008
— A novel intelligent genetic algorithm (GA), called Minimum Distance guided GA (MDGA) is proposed for peak-average-power ratio (PAPR) reduction based on partial transmit sequence (PTS) scheme in a synchronous Multi-Carrier Code Division Multiple Access (
Chen, HH   +11 more
core   +1 more source

Home - About - Disclaimer - Privacy