A novel waveform for FQPSK modulation

Author

Xie, Zhidong ; Zhang, Gengxin ; Zhu, Hongpeng

Author_Institution

Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China

fYear

2008

fDate

19-21 Nov. 2008

Firstpage

851

Lastpage

854

Abstract

Feher Quadrature Phase Shift Keying (FQPSK) is a quasi constant envelope modulation and it can be used to improve the power efficiency of high power amplifier (HPA). However, the envelope of FQPSK still has a least fluctuation of 0.18 dB and can be further improved. New waveforms for FQPSK modulation are presented in this paper. The performance of the FQPSK adopting new waveform is justified by analysis and simulation. The signal of new FQPSK has the strictly constant envelope. It improves the power efficiency of the amplifiers to the utmost, and outperforms over conventional FQPSK in both the bandwidth efficiency and the end to end performance of bit error probability. At last, the impact of frequency selective multi-path fading on the bit error rate performance of new FQPSK is derived and analyzed.

Keywords

error statistics; fading channels; multipath channels; quadrature phase shift keying; FQPSK modulation; Feher quadrature phase shift keying; bandwidth efficiency; bit error probability; bit error rate performance; frequency selective multipath fading; high power amplifier; power efficiency; quasiconstant envelope modulation; Analytical models; Bandwidth; Error probability; Fluctuations; Frequency; High power amplifiers; Performance analysis; Phase modulation; Power amplifiers; Quadrature phase shift keying; FQPSK; constant; envelope; fading; frequency; modulation; multi-path; selective; waveform;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on

Conference_Location

Guangzhou

Print_ISBN

978-1-4244-2423-8

Electronic_ISBN

978-1-4244-2424-5

Type

conf

DOI

10.1109/ICCS.2008.4737306

Filename

4737306