The contradiction between channel estimation and PAPR performance in cyclic shift PTS

Long, Ken; Fu, Yue; Wang, Yi

doi:10.1109/bmei.2012.6512917

Cited by 4 publications

(2 citation statements)

References 11 publications

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“…where g v x is the cyclically shifting version of xv by some of the integer shift numbers? This is [36],…”

Section: Ifft( ) mentioning

confidence: 93%

Hybrid Model for PAPR Minimization in OFDM System

2021

IJCCCE

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The technology has been growing rapidly in the form of portable wireless devices that can perform multiple functions to cope with the state-of-the-art technology and synchronization. A total device capacity must be increased to accommodate new wireless applications. This can be achieved by leveraging new technologies, with higher data rates. Spectrum pooling has gained immense popularity, with increased demand for frequency range and bandwidth availability constraints. Statistics suggest that much of the spectrum licensed is not used all the time. Because of the transmitter's nonlinearity nature, the large (peak to average power ratio (PAPR)) phenomenon is a drawback in orthogonal frequency division multiplexing (OFDM). Several hybrid approaches have recently been implemented to minimize PAPR's high value, at the expense of increasing the level of computational complexity in the system. In this paper, a new hybrid approach has been introduced in parallel to combine the selective mapping approach (SLM) with the partial transmit sequence (PTS) approach to improve the efficiency of PAPR reduction with lower numerical method complexity. The findings reveal that the OFDM systems with the proposed hybrid approach have better efficiency in terms of PAPR elimination, side-information, and computational complexity compared to current hybrid methods. Also, a hybrid approach proposed output could be maintained without degradation. Index Terms: OFDM, PTS, PAPR, SLM

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“…where g v x is the cyclically shifting version of xv by some of the integer shift numbers? This is [36],…”

Section: Ifft( ) mentioning

confidence: 93%

Hybrid Model for PAPR Minimization in OFDM System

2021

IJCCCE

View full text Add to dashboard Cite

show abstract

“…First, its PAPR reduction performance is better than the PTS scheme's. Second, it is possible to recover the transmitted OFDM signal sequence without side information using some additional techniques at the receiver [8], [10].…”

Section: Introductionmentioning

confidence: 99%

On the Shift Value Set of Cyclic Shifted Sequences for PAPR Reduction in OFDM Systems

Kim

2016

IEEE Trans. on Broadcast.

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Abstract-Orthogonal frequency division multiplexing (OFDM) signals have high peak-to-average power ratio (PAPR), which causes distortion when OFDM signal passes through a nonlinear high power amplifier (HPA). A partial transmit sequence (PTS) scheme is one of the typical PAPR reduction methods. A cyclic shifted sequences (CSS) scheme is evolved from the PTS scheme to improve the PAPR reduction performance, where OFDM signal subsequences are cyclically shifted and combined to generate alternative OFDM signal sequences. The shift value (SV) sets in the CSS scheme should be carefully selected because those are closely related to the PAPR reduction performance of the CSS scheme. In this letter, we propose some criteria to select the good SV sets and verify its validness through simulations.Index Terms-Cyclic shifted sequences (CSS), orthogonal frequency division multiplexing (OFDM), peak-to-average power ratio (PAPR), partial transmit sequence (PTS).

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Cyclic constellation mapping method for PAPR reduction in OFDM system

Cheng

Hou

et al. 2013

2013 8th International Conference on Communications and Networking in China (CHINACOM)

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The contradiction between channel estimation and PAPR performance in cyclic shift PTS

Cited by 4 publications

References 11 publications

Hybrid Model for PAPR Minimization in OFDM System

Hybrid Model for PAPR Minimization in OFDM System

On the Shift Value Set of Cyclic Shifted Sequences for PAPR Reduction in OFDM Systems

Cyclic constellation mapping method for PAPR reduction in OFDM system

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