Results 71 to 80 of about 9,472 (221)
Detection Strategies for MIMO‐GFDM‐IM System
IET Communications, Volume 19, Issue 1, January/December 2025.Dedicated to studying the multiple‐input multiple‐output generalized frequency division multiplexing with index modulation wireless communication system, this paper highlights its high spectral and energy efficiency, robustness against multipath channels.
José Luis Calpa Juajinoy +2 more
wiley +1 more source
Progressive Image Transmission over OFDM System with Minimum Peak to Average Power Ratio (PAPR)
International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering, 2015 The aim of this project is reduce the PAPR of transmitted OFDM signals, improve the transmitted image quality & The SPIHT coder is chosen as the source coding technique due to its flexibility of code rate and simplicity of designing optimal system. Trigonometric transforms are used in this scheme for improving the performance of the OFDM system and ...
openaire +1 more source
International Journal of Computer Applications, 2016 In this paper various Hybrid techniques of keying and coding algorithm have been implemented to efficiently reduce the peak-to-average-power ratio (PAPR) problem that exists in MIMO-OFDM. A novel Selective Level Method (SLM) method is used as a basic technique which has been combined with other keying and transform techniques. Square root technique and
Shabir Ahmad +4 more
openaire +1 more source
Chip Interleaving and its Optimization for PAPR Reduction in MC-CDMA [PDF]
, 2007 This paper analyzes the usability of peak to average power ratio (PAPR) reduction in multicarrier code division multiple access (MC-CDMA) by the chip interleaving optimization. This means chip position formatting to PAPR minimization.
Fedra, Z., Marsalek, R., Sebesta, V.
core +1 more source
Performance Enhancement of Indoor VLC Systems Using DPSS‐Based DCO‐GFDM Modulation
IET Communications, Volume 19, Issue 1, January/December 2025.VLC is a promising solution for future wireless communication systems due to its high data rate, wide bandwidth, and enhanced security features. However, challenges such as high PAPR and OOB spectral leakage limit its performance. In this study, we propose the integration of DPSS with DCO‐GFDM to enhance the performance of indoor VLC systems.
Amin Emami +2 more
wiley +1 more source
Optimization of Tone Reservation-Based PAPR Reduction for OFDM Systems [PDF]
Radioengineering, 2017 A major drawback of orthogonal frequency division multiplexing (OFDM) is its high peak-to-average power ratio (PAPR). Tone reservation (TR) is one of the numerous methods for reducing the PAPR.
B. Horvath, B. Botlik
doaj
ETRI Journal, 2020 Noncontiguous orthogonal frequency division multiplexing (NC‐OFDM)‐based cognitive radio (CR) systems achieve highly efficient spectrum utilization by transmitting unlicensed users' data on subcarriers of licensed users’ data when they are free. However,
Sravan Kumar Kaliki +2 more
doaj +1 more source
IET Communications, Volume 19, Issue 1, January/December 2025.This article proposes a hybrid SLM+PTS+RNN algorithm to mitigate the high PAPR challenge in UFMC systems for B5G networks. The method significantly improves power efficiency (by 30%–40%) while maintaining BER and PSD performance, outperforming traditional PAPR reduction techniques.
Arun Kumar +2 more
wiley +1 more source
Sir Syed University Research Journal of Engineering and Technology, 2011 In this research paper the performance of the CDMA system has been analyzed with respect to PAPR (Peak to Average Power Ratio) measurement and its reduction.
Syed Rizwan-ul- Hasan, Shakil Ahmed
doaj
DE BRUIJN SEQUENCE BASED PEAK POWER CONTROL AND INTERFERENCE MITIGATION IN MC-CDMA SYSTEM [PDF]
Journal of Engineering Science and Technology, 2015 In Multicarrier Code Division Multiple Access (MC-CDMA) system, the performance can get degraded due to a high Peak to Average Power Ratio (PAPR) which is equivalent to Peak to Mean Envelope Power Ratio (PMEPR) and Multi Access Interference (MAI).
NOOR MOHAMMED V +5 more
doaj