Title :
Robust Fractal Modulation for Mobile Communications
Author :
Sisul, G. ; Modlic, B. ; Kos, T.
Author_Institution :
Dept. of Radiocommun. & Microwave Eng., Zagreb Univ.
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;
Conference_Titel :
Communications, 2005 Asia-Pacific Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-9132-2
DOI :
10.1109/APCC.2005.1554156
