BER analysis of hybrid carrier system based on WFRFT with carrier frequency offset

Wang, Zhenduo; Mei, Lin; Wang, Xiaolu; Sha, Xuejun; Zhang, Naitong

doi:10.1049/el.2015.1027

Cited by 24 publications

(7 citation statements)

References 11 publications

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“…Note that there is only one WFRFT parameter in (1), which can be called single parameter WFRFT [19]. In addition, (1) can be represented as the following form:…”

Section: Notationsmentioning

confidence: 99%

PHY‐Aided Secure Communication via Weighted Fractional Fourier Transform

et al. 2018

Wireless Communications and Mobile Computing

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A weighted fractional Fourier transform (WFRFT) based on channel state information (CSI), aiming to safeguard the physical (PHY) layer security of wireless communication system, is proposed. With the proposed scheme, WFRFT is first applied to satellite communications such that the transmitted signal is distorted and can only be neutralized by inverse-WFRFT with the same parameter. Moreover, by exploiting the physical properties of wireless channels, the CSI matrix is transformed as a secret key. In addition, by adding phase rotation (PR) factors to each branch of the WFRFT system, a new unitary matrix with the encryption properties is constructed, and hence, the satellite communications secrecy is reliably guaranteed due to the variation in signal characteristics. Finally, the efficacy of the security enhancement is evaluated in terms of the average bit error rate (BER) and the secrecy capacity. Simulation results show that the proposed encryption method can make the detection and demodulation more difficult for the eavesdropper.

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“…Note that there is only one WFRFT parameter in (1), which can be called single parameter WFRFT [19]. In addition, (1) can be represented as the following form:…”

Section: Notationsmentioning

confidence: 99%

PHY‐Aided Secure Communication via Weighted Fractional Fourier Transform

et al. 2018

Wireless Communications and Mobile Computing

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“…Additionally, the coexistence of SC and MC also enables a WFRFT‐based system to achieve a more even time‐frequency distribution for both signal and interference energy [21, 22]. This natural instinct makes WFRFT‐based system a promising solution for interference mitigation [19, 23, 24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced signalling provisioning for UAV‐enabled MEC: A GWFRFT‐based energy‐spreading transmission approach

Fang

Zhou

et al. 2020

IET Communications

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“…In the techniques applied to the OFDM/SC system such as power allocation, coding are also available in the HC system due to its strong compatibility. In [29], the ICI coefficients introduced by carrier frequency offset is derived in the HC system according to the conclusions in the OFDM and SC systems. In [30], the joint PAPR and sidelobe reduction is achieved in the HC scheme via time domain windowing and frequency domain pulse shaping, where the WFRFT order is proven to be a beneficial regulation of PAPR and BER.…”

Section: Introductionmentioning

confidence: 99%

On the performance of hybrid carrier system with spectrum precoding based on WFRFT

Wang

Mei

Wang

et al. 2017

J Wireless Com Network

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High out-of-band (OOB) power emission has become the main shortcoming of multicarrier scheme in regard to the requirements and challenges of 5G. In this paper, two effective OOB power reduction methods, previously applied to traditional orthogonal frequency division multiplexing (OFDM) system, are proposed in hybrid carrier (HC) scheme based on weighted-type fractional Fourier transform (WFRFT). Simulation results demonstrate that, due to the flexible selection of WFRFT order in the HC system, combined bit error rate (BER) and peak-to-average power ratio (PAPR) performance advantages are gained without sidelobe impact and significant complexity increase in comparison with the OFDM scheme with spectrum precoding. In projection precoding, a smaller error vector magnitude of precoder G χ is obtained in the proposed hybrid carrier scheme. In SVD precoding with an orthogonal decoding at the receiver, better BER performance could also be acquired at WFRFT order over the fading channels. The proposed two WFRFT-based structures are complementary, and their potential scenarios are given. In addition, applying the feature of projection precoding to channel estimation, a novel pilot structure based on WFRFT is posed to reduce the introduced error of spectrum precoding and finally helps to improve the BER performance.

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BER analysis of hybrid carrier system based on WFRFT with carrier frequency offset

Cited by 24 publications

References 11 publications

PHY‐Aided Secure Communication via Weighted Fractional Fourier Transform

PHY‐Aided Secure Communication via Weighted Fractional Fourier Transform

Enhanced signalling provisioning for UAV‐enabled MEC: A GWFRFT‐based energy‐spreading transmission approach

On the performance of hybrid carrier system with spectrum precoding based on WFRFT

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