Title :
Nonlinear Filtering for Rejection ISI in FSK Modulation
Author :
Tarihi, Mohammad Reza ; Taheri, Asghar ; Mohamed-pour, Kamal
Author_Institution :
Dept. of Electr. Eng., Malek Ashtar Univ. of Technol.
Abstract :
We analyze the occurs error in binary FSK due to inter symbol interference (ISI) in mobile radio channels, with a limiter-filtering-integrator detector. The errors are caused by bursts in the instantaneous frequency. We propose and verify that a nonlinear frequency filtering can achieve zero error floors for pure FSK by clipping off these bursts. For filtered FSK, the error floor is not completely removed, but strongly reduced - typically by one or two orders of magnitude
Keywords :
filtering theory; frequency shift keying; interference suppression; intersymbol interference; mobile radio; nonlinear filters; radiofrequency interference; wireless channels; FSK modulation; ISI; inter symbol interference rejection; limiter-filtering-integrator detector; mobile radio channels; nonlinear frequency filtering; Baseband; Delay; Error analysis; Filtering; Frequency shift keying; Intersymbol interference; Land mobile radio; Modulation; Nonlinear equations; Radiofrequency interference;
Conference_Titel :
Advanced Communication Technology, 2006. ICACT 2006. The 8th International Conference
Conference_Location :
Phoenix Park
Print_ISBN :
89-5519-129-4
DOI :
10.1109/ICACT.2006.206369
