Pilot-assisted data recovery for OFDM systems with blind selected mapping scheme and space-frequency block coding

Park, Jihan; Hong, Eonpyo; Kim, Hyun-Ju; Kim, Kiseon; Har, Dongsoo

doi:10.1016/j.dsp.2013.07.002

Cited by 1 publication

(1 citation statement)

References 17 publications

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“…But amplifiers with large dynamic range have very low power efficiency and are expensive. So far many methods have been proposed to reduce the PAPR, including companding [2], coding [3], selected mapping (SLM) [4], partial transmit Manuscript received September 15, 2014;revised December 30, 2014. This work was supported by the Fundamental Research Funds for the Central Universities under Grant No. lzujbky-2014-55.…”

Section: Introductionmentioning

confidence: 99%

A New Weighted Tone Reservation Method for PAPR Reduction in OFDM Systems

Lv¹

2014

JCM

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The tone reservation (TR) technique is an efficient method to reduce the peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems. Although the weighted tone reservation (WTR) approach has been proposed as a potentially promising way to reduce the peak power, it suffers from high peak regrowth in the non-peak region of the transmitted signal. In addition, so far the effective selection of the weights is still an open problem. In this paper, we propose a new weighted tone reservation method that offers two contributions. The first is a reformulation of the traditional weighted least squares optimization that seeks to deeply suppress the peak regrowth of the transmitted signal in the low energy portion while reducing the peak power. The second is a careful study of the optimal weight selection. We provide the general guidelines and propose a class of suitable weights that are easy to implement. Then from this class we find the empirically optimal weights. Simulation results show that the proposed method has much improved performance in terms of both PAPR reduction and bit error rate (BER) than the existing clipping-based TR methods, which represent the state-of-the-art PAPR reduction solutions.  Index Terms-Orthogonal frequency division multiplexing (OFDM), peak-to-average-power ratio (PAPR), weighted least squares (WLS), tone reservation (TR), clipping control I.

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Section: Introductionmentioning

confidence: 99%

A New Weighted Tone Reservation Method for PAPR Reduction in OFDM Systems

Lv¹

2014

JCM

View full text Add to dashboard Cite

show abstract

Pilot-assisted data recovery for OFDM systems with blind selected mapping scheme and space-frequency block coding

Cited by 1 publication

References 17 publications

A New Weighted Tone Reservation Method for PAPR Reduction in OFDM Systems

A New Weighted Tone Reservation Method for PAPR Reduction in OFDM Systems

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