Results 71 to 80 of about 9,490 (213)
Energy‐Aware Protocol Design and Evaluation of the PHY Layer in Satellite IoT
International Journal of Satellite Communications and Networking, Volume 43, Issue 2, Page 61-76, March/April 2025.ABSTRACT Direct‐to‐satellite communication for the Internet of Things (IoT) has attracted significant interest from both the scientific community and major telecommunications players. The integration of satellite connectivity in smartphones and IoT devices promises a transformative impact on critical applications such as environmental monitoring, asset
Simon Heine +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
Journal of Physics: Conference Series, 2020 Abstract In this paper, diversity sparse activated subcarriers OFDM index modulation (DSASOFDM-IM) is proposed to improve the Energy Efficiency (EE) of interpolated sparse activated subcarriers OFDM index modulation (ISAS-OFDM-IM), which was proposed to improve spectrum efficiency (SE) and bite error rate (BER) of the OFDM modulation ...
Amgad F. Aziz +2 more
openaire +1 more source
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
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
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
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
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L'optimalité de l'OFDM en termes de performance en PAPR [PDF]
, 2015 National audienceLes systèmes multi-porteuses, et en particulier leur structure de modulation, connaissent un intérêt croissant. Suivant la forme d'onde considérée, plusieurs mesures de performance peuvent changer comme le PAPR (Peak-to-Average Power ...
Chafii, Marwa +2 more
core +3 more sources