Robust Fractal Modulation for Mobile Communications

Author

Sisul, G. ; Modlic, B. ; Kos, T.

Author_Institution

Dept. of Radiocommun. & Microwave Eng., Zagreb Univ.

fYear

2005

fDate

5-5 Oct. 2005

Firstpage

720

Lastpage

724

Abstract

This paper presents a robust fractal modulation scheme which is suitable for signal transmission over wireless channels. Recent work has suggested fractal modulation with BPSK, QPSK and QAM symbols. As a novelty, we proposed the fractal modulation with differential encoded data. It allows differential decoding, which is accomplished using differentially coherent detection. We used data which are equivalent to the symbols of pi/4-DQPSK modulation. Carrier synchronization is not needed at the receiver in that case. Mobile channels were simulated like Rayleigh flat fading channels and frequency selective channels

Keywords

Rayleigh channels; decoding; differential phase shift keying; mobile radio; quadrature phase shift keying; wireless channels; BPSK symbol; QAM symbol; QPSK symbol; Rayleigh flat fading channels; differential decoding; differential encoded data; differentially coherent detection; frequency selective channels; mobile channels; mobile communications; pi/4-DQPSK modulation; robust fractal modulation scheme; signal transmission; wireless channels; Binary phase shift keying; Bit error rate; Demodulation; Discrete wavelet transforms; Fading; Filter bank; Fractals; Frequency synchronization; Mobile communication; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2005 Asia-Pacific Conference on

Conference_Location

Perth, WA

Print_ISBN

0-7803-9132-2

Type

conf

DOI

10.1109/APCC.2005.1554156

Filename

1554156