FPGA Realization of Peak-to-Average Power Ratio Reduction Techniques for OFDM Wireless Systems

Dick, Chris; Tarn, H.

doi:10.1109/acssc.2007.4487581

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…The field programmable gate array (FPGA) has many advantages in digital signal processing, including high density integration, parallel operation mechanisms, high speed processing, and flexible implementation. It has become one of the main choices for implementing PAPR reduction algorithms in real systems [18,19]. In this section, we illustrate how to implement the proposed TTPS-based Tone Reservation algorithm on FPGA chips.…”

Section: Fpga Implementationmentioning

confidence: 99%

Gaussian Pulse-Based Two-Threshold Parallel Scaling Tone Reservation for PAPR Reduction of OFDM Signals

Guan

Zhu

2011

International Journal of Digital Multimedia Broadcasting

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Tone Reservation (TR) is a technique proposed to combat the high Peak-to-Average Power Ratio (PAPR) problem of Orthogonal Frequency Division Multiplexing (OFDM) signals. However conventional TR suffers from high computational cost due to the difficulties in finding an effective cancellation signal in the time domain by using only a few tones in the frequency domain. It also suffers from a high cost of hardware implementation and long handling time delay issues due to the need to conduct multiple iterations to cancel multiple high signal peaks. In this paper, we propose an efficient approach, calledtwo-threshold parallel scaling,for implementing a previously proposed Gaussian pulse-based Tone Reservation algorithm. Compared to conventional approaches, this technique significantly reduces the hardware implementation complexity and cost, while also reducing signal processing time delay by using just two iterations. Experimental results show that the proposed technique can effectively reduce the PAPR of OFDM signals with only a very small number of reserved tones and with limited usage of hardware resources. This technique is suitable for any OFDM-based communication systems, especially for Digital Video Broadcasting (DVB) systems employing large IFFT/FFT transforms.

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Section: Fpga Implementationmentioning

confidence: 99%

Gaussian Pulse-Based Two-Threshold Parallel Scaling Tone Reservation for PAPR Reduction of OFDM Signals

Guan

Zhu

2011

International Journal of Digital Multimedia Broadcasting

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“…As results, the transmitter with high dynamic ranges should be used to overcome such deficiency. Hence, it has turned the researchers' attention toward how to optimize and propose solution at the expense of the computational complexity, the bit error rate (BER) degradation, or the side information transmission process (SI) that decreases the spectral efficiency, such as amplitude clipping, selective mapping (SLM), partial transmit sequence (PTS), coding based schemes, shifted phase sequence techniques, transformation based techniques and tone based schemes [15][16][17][18]. Generally, the predicted PAPR in the OFDM signal can be easily written as: (2) Here, is the transmitted OFDM symbol that is generated by modulating a data block of symbols;…”

Section: Peak-to-average Power Ratiomentioning

confidence: 99%

PWM Technique to Overcome the Effect of High PAPR in Wireless Systems

Daoud¹

2014

IJCNC

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FPGA Realization of Peak-to-Average Power Ratio Reduction Techniques for OFDM Wireless Systems

Cited by 2 publications

References 3 publications

Gaussian Pulse-Based Two-Threshold Parallel Scaling Tone Reservation for PAPR Reduction of OFDM Signals

Gaussian Pulse-Based Two-Threshold Parallel Scaling Tone Reservation for PAPR Reduction of OFDM Signals

PWM Technique to Overcome the Effect of High PAPR in Wireless Systems

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