Results 21 to 30 of about 88,236,480 (283)
Hybrid Peak-to-Average Power Ratio Reduction Techniques: Review and Performance Comparison
Orthogonal frequency division multiplexing (OFDM) is an efficient multi-carrier modulation technique for wireless communication. However, one of the main drawbacks encountered in implementing it is its resultant high peak-to-average power ratio (PAPR ...
Francisco Sandoval +2 more
doaj +1 more source
Time Reduction for SLM OFDM PAPR Based on Adaptive Genetic Algorithm in 5G IoT Networks
In this paper, a new peak average power and time reduction (PAPTR) based on the adaptive genetic algorithm (AGA) strategy is used in order to improve both the time reduction and PAPR value reduction for the SLM OFDM and the conventional genetic algorithm
Esam A. A. Hagras +4 more
doaj +1 more source
A Novel Clipping-Based Method to Reduce Peak-To-Average Power Ratio of OFDM Signals
Orthogonal frequency division multiplexing (OFDM) is a widely used technology for wireless broadband communications. However, it also suffers from some drawbacks.
Bo Tang +3 more
doaj +1 more source
A Closed Form Selected Mapping Algorithm for PAPR Reduction in OFDM Multicarrier Transmission
Nowadays, the demand for communication multi-carriers’ channels, where the sub-channels are made mutually independent by using orthogonal frequency division multiplexing (OFDM), is widespread both for wireless and wired communication systems.
Sara Carcangiu +2 more
doaj +1 more source
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
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A peak-to-average power ratio reduction method for mixed-numerology multi-carrier systems
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
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
Spreading Code Design for a MC-CDMA Based GNSS Pilot Signal [PDF]
MC-CDMA can represent an alternative to classical DS-CDMA for the design of GNSS ranging signals. A first requirement MC-CDMA signals must fulfill is that their generation on a satellite payload be feasible.
Meurer, Michael +7 more
core +1 more source
Partial Transmit Sequences for Peak-to-Average Power Ratio Reduction in Multiantenna OFDM
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
When dealing with the phenomenon of unexpected high peak-to-average power ratio (PAPR) caused by multicarrer techniques, it is rarely to find a proposed solution that addresses the most important challenges together, that are; reducing the PAPR ...
Mohammed I. Al-Rayif
doaj +1 more source

