A new peak-to-average power reduction technique in the OFDM system using μ-law compander

2008 ◽  
Author(s):  
H. Sakran ◽  
M. Shokair ◽  
A. Abou Elazm
Keyword(s):  
Average Power ◽  
Power Reduction ◽  
Reduction Technique ◽  
Ofdm System

Peak Power Reduction through Conic Optimized Sigma Clipping and Filtering

2014 ◽  
Vol 550 ◽  
pp. 220-227
Author(s):  
V. Nandalal ◽  
S. Sophia ◽  
B. Gayathri
Keyword(s):  
Bit Error Rate ◽  
Power Efficiency ◽  
Peak Power ◽  
Hardware Implementation ◽  
Average Power ◽  
Power Reduction ◽  
Ofdm System ◽  
Transmitter Power ◽  
Peak Power Reduction ◽  
Clipping And Filtering

High Peak to Average Power Ratio (PAPR) of OFDM reduces transmitter power efficiency and increases complexity in hardware implementation. In the paper, the high PAPR is reduced using optimized Standard Deviation based Iterative Clipping and Filtering (SD-ICF).The proposed method achieves a greater reduction in PAPR in a few iterations with reduced out-of-band distortion and bit error rate when compared over classical clipping techniques.Also, the effects of oversampling on the performance of proposed OFDM system is discussed.

Design and Simulation of OFDM for BPSK, QPSK and QAM with Peak Power Reduction Using Clipping Technique

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Arun Kumar
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Peak Power ◽  
Average Power ◽  
Power Reduction ◽  
Frequency Division ◽  
Ofdm System ◽  
High Data ◽  
Data Rates ◽  
Peak Power Reduction ◽  
Clipping Technique

AbstractDue to the increase in demand for high data rates in mobile communication, orthogonal frequency division multiplexing (OFDM) system is employed in many applications. It efficiently overcomes the effect of Inter-symbol Interference caused due to the fading of the channel, but Peak to Average Power Ratio (PAPR) is unitary of the disadvantages in OFDM System. In the stage-I, the OFDM system is designed with different modulation schemes like QAM-16, BPSK, and QPSK. In the latter stage, we work on the reduction of PAPR by using a clipping technique and we establish a significant reduction in PAPR as compared to the conventional clipping technique.

scholarly journals Comparative Analysis of Clipping-filtering, SLM and PTS for PAPR Reduction Technique in OFDM System

2021 ◽  
Author(s):  
Sneha Singhal ◽  
Dheeraj Kumar Sharma
Keyword(s):  
Power Amplifier ◽  
Orthogonal Frequency Division Multiplexing ◽  
Narrow Band ◽  
Average Power ◽  
Reduction Technique ◽  
Modulation Scheme ◽  
Power Ratio ◽  
Frequency Division ◽  
Ofdm System ◽  
High Data

Modulation scheme, orthogonal frequency division multiplexing (OFDM) uses multiple carriers to communicate and transmit data. It is used widely in wireless communication due to its numerous advantages. OFDM modulation is very advantageous as it reduces inter symbol interference, provides high data rate and it is not affected by narrow band effect. To operate OFDM effectively, its high value of peak to average power ratio should be reduced. In OFDM, power amplifier should be linear and accommodate amplitude variations to work efficiently. The high peak to average power ratio affects the performance of power amplifier.

scholarly journals PERFORMANCE IMPROVEMENT OF OFDM SYSTEM BY PEAK TO AVERAGE POWER REDUCTION THROUGH PULSE SHAPING TECHNIQUE

2010 ◽  
Vol 01 (04) ◽  
pp. 202-206
Author(s):  
Susmita Das ◽  
◽  
Srabani Mohapatra ◽  
KalaPraveen Bagadi ◽  
◽  
...  
Keyword(s):  
Performance Improvement ◽  
Pulse Shaping ◽  
Average Power ◽  
Power Reduction ◽  
Ofdm System ◽  
Shaping Technique
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