| Issue |
ITM Web Conf.
Volume 17, 2018
4th Annual International Conference on Wireless Communication and Sensor Network (WCSN 2017)
|
|
|---|---|---|
| Article Number | 03012 | |
| Number of page(s) | 9 | |
| Section | Session 3: Smart City in Resource Management, Ecological and Environmental Data Processing | |
| DOI | https://doi.org/10.1051/itmconf/20181703012 | |
| Published online | 02 February 2018 | |
Research on single carrier frequency domain equalization system based on FQPSK modulation
Beijing University of Posts and Telecommunications, Xitucheng Road 10#, Haidian District, Beijing, P.R.China.
* Corresponding author: zhangmeng4113@163.com
Feher-patented quadrature phase shift keying (fqpsk) modulation is proposed for single-carrier frequency domain equalization (sc-fde). this paper puts forward a new method modulation called cc-bcd-fqpsk. the fqpsk signal is oversampled to make that the discrete fourier transform (dft)/ inverse dft (idft) processing of it can be applied for sc-fde. the methodology for maintaining waveform continuity with a cyclic prefix (cp) is presented. wrap-around viterbi algorithm (wava) is suggested for demodulation after equalization at the receiver. simulation results show that sc-fde system based on cc-bcd-fqpsk modulation has higher spectral efficiency than linear modulation qpsk and is an effective approach for eliminating isi and using nonlinear high power amplifier.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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