Performance of hybrid carrier DS CDMA communication system

Qiu, Xiaoqing; Sha, Xuejun; Mei, Lin

doi:10.1109/chinacom.2011.6158143

Cited by 2 publications

(1 citation statement)

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“…A great deal of research has been done on the HC operation and application. In [7,8], it has been verified that HC communication system can get a better bit error rate (BER) performance in the single frequency interference and additive white Gaussian noise (AWGN) channel with code division multiple access (CDMA) precoding. HC communication system can enhance the system performance when the WFRFT order α is properly selected during the same communication channel state [6,9,10].…”

Section: Introductionmentioning

confidence: 99%

On Narrowband Interference Suppression in OFDM-based Systems with CDMA and Weighted-type Fractional Fourier Transform Domain Preprocessing

Liang¹,

Da²,

Wang³

2017

KSII TIIS

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In this paper, we propose a new scheme to suppress the narrowband interference (NBI) in OFDM-based systems. The scheme utilizes code division multiple access (CDMA) and weighted-type fractional Fourier transform (WFRFT) domain preprocessing technologies. Through setting the WFRFT order, the scheme can switch into a single carrier (SC) or a multi-carrier (MC) frequency division multiple access block transmission system. The residual NBI can be eliminated to the maximum extent when the WFRFT order is selected properly. Final simulation results show that the proposed system can outperform MC and SC with CDMA and frequency domain preprocessing in terms of the narrowband interference suppression.

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