Results 81 to 90 of about 26,554 (242)

A Beyond 5G OTFS Waveform Radio for Smart Hospital: PAPR Reduction in OTFS Using the Cuckoo Search–Based PTS Method

open access: yesJournal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
Smart hospitals have enormous potential to improve global standards of medical services. Integrating fifth‐generation (5G) and beyond 5G radio with the present healthcare framework can make hospitals smarter. High spectral access, data rate, capacity, low latency, and large data handling are requirements of innovative hospitals.
Arun Kumar   +2 more
wiley   +1 more source

Joint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA [PDF]

open access: yes, 2010
Single-Carrier Frequency Division Multiple Access (SC-FDMA) has been selected as the uplink transmission scheme in the 3GPP Long Term Evolution standard.
Nix, AR, Noune, MB
core   +2 more sources

Binary Search‐Based Division (BSBD): A Technique for Efficient Division in Hardware

open access: yesJournal of Electrical and Computer Engineering, Volume 2025, Issue 1, 2025.
The division techniques play a key role in several computer‐implemented algorithms and applications; regrettably, they impose significant implementation constraints that hinder parallelization. The proposed binary search‐based division (BSBD) technique is inherited from the variable latency dividers, which have the potential to adjust the quotient bit ...
Mustafa Muhammed Hendawi   +5 more
wiley   +1 more source

An optimization technique for simultaneous reduction of PAPR and out‐of‐band power in NC‐OFDM‐based cognitive radio systems

open access: yesETRI 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

Implementation of preamble based GFDM prototype for robust 5G systems

open access: yesIET Communications, Volume 18, Issue 19, Page 1348-1357, December 2024.
The block diagram for implementing GFDM pertaining to CFO estimation and depicting the trade off between length of the training symbol and bit error rate. Abstract Generalized frequency division multiplexing (GFDM) is a flexible block‐structured multi‐carrier scheme recently proposed for next‐generation wireless communication systems. There are various
Yaswanth K.N.G.B   +5 more
wiley   +1 more source

DE BRUIJN SEQUENCE BASED PEAK POWER CONTROL AND INTERFERENCE MITIGATION IN MC-CDMA SYSTEM [PDF]

open access: yesJournal 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  

Chip Interleaving and its Optimization for PAPR Reduction in MC-CDMA [PDF]

open access: yes, 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

A PAPR correction scheme for LoRa self‐jamming waveforms

open access: yesIET Communications, Volume 18, Issue 19, Page 1588-1603, December 2024.
A self‐jamming scheme of LoRa waveforms enabling secure transmissions is recently proposed in literature, which performs well in simulations. However, experiments on SDR equipment immediately showed that a transmission is impossible due to PAPR introduced by the waveform modification.
Clément Demeslay   +5 more
wiley   +1 more source

Performance Evaluation of Code Division Multiple Access (CDMA) in terms of Power Measurement and Reduction

open access: yesSir 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  

Optimization of Tone Reservation-Based PAPR Reduction for OFDM Systems [PDF]

open access: yesRadioengineering, 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  

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