The technique uses the image adjust (IMADJS) function to reduce the high PAPR of transmitted OFDM signals by compressing large signals and expanding small signals. In comparison, the IMADJS strategy has the advantage of maintaining a constant average power level before and after companding.
Mar 1, 2021
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Which technique is used to reduce peak-to-average power ratio in OFDM?
The technique of reducing the Peak-to-Average Power Ratio (PAPR) of an Orthogonal Frequency Division Multiplexing (OFDM) signal using Partial Transmit Sequence (PTS) is widely employed to address the issue of high PAPR in OFDM communication systems.
How does a high peak-to-average power ratio PAPR affect OFDM systems?
However, one of the most serious problems is the high Peak-to-Average Power Ratio (PAPR) of the transmitted OFDM signal, since this large peaks introduce a serious degradation in performance when the signal passes through a nonlinear High-Power-Amplifier (HPA).
What are the PAPR reduction techniques in OFDM?
The OFDM is affected by the disadvantage of high PAPR. Several PAPR Techniques: SLM, PTS, Clipping, Filtering Tone Reservation, etc., to decrease the PAPR effect in OFDM systems. Significant results like error ratio, information scale, energy rise, etc.
What are the approaches used to improve OFDM performance?
The methods used to reduce PAPR are clipping and filtering, selective mapping, partial transmit sequence, tone reservation, and injection and non-linear commanding. The drawbacks of the above methods are computational complexity, spectrum inefficiency, increase in bit error rate and PAPR rate.
Mar 5, 2021 · The technique uses the image adjust (IMADJS) function to reduce the high PAPR of transmitted OFDM signals by compressing large signals and ...
A new technique for decreasing the high PAPR in OFDM with minimum effects on the system performance is proposed using the image adjust (IMADJS) function, ...
In this paper a companding-based scheme is proposed to reduce the Peak-to-average power ratio (PAPR) of an orthogonal frequency division multiplexing system. At ...
In this article, a new technique for decreasing the high PAPR in OFDM with minimum effects on the system performance is proposed. The technique uses the image ...
The technique uses the image adjust (IMADJS) function to reduce the high PAPR of transmitted OFDM signals by compressing large signals and expanding small ...
This paper proposes a new precoding-companding technique to better reduce the BER and OOB radiation than previous precoding-companding techniques.
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A novel companding technique to reduce high peak to average power ratio in ofdm system/ Abdulwahid Mohammed Abdulwahid Mohammed ; Supervised Amin Nassar , ...
A companding technique using the hyperbolic tangent transform is proposed for reducing the peak-to-average-power ratio (PAPR) of orthogonal frequency ...