Title :
ARC-FSK-a new anti-multipath modulation for mobile and personal communications systems
Author :
Leung, Patrick S K
Author_Institution :
Dept. of Electr. & Electron. Eng., Victoria Univ. of Technol., Melbourne, Vic., Australia
Abstract :
A novel asymmetric-raised-cosine frequency shift keying (ARC-FSK) digital modulation with superior anti-multipath characteristics is proposed. The new modulation is significantly more robust than the popular GMSK/GFSK in multipath radio propagation environment. Our theoretical analysis and computer simulation studies show that the new ARC-FSK modulation has the ability to speed up conventional PCS and indoor wireless LAN systems (currently using GMSK/GFSK) by more than two times without channel equalizer, The penalty is a mere 14% reduction in spectral efficiency. Another attractive feature of ARC-FSK is its full compatibility with conventional GMSK/GFSK. We conclude that the ARC-FSK modulation is ideal for high speed low cost TDMA/PCS and indoor wireless LAN systems where both high power/spectral efficiency and simple modem structure are desired
Keywords :
adjacent channel interference; digital radio; frequency shift keying; indoor radio; land mobile radio; multipath channels; personal communication networks; time division multiple access; wireless LAN; ARC-FSK; GMSK/GFSK; TDMA; adjacent channel interference; anti-multipath modulation; asymmetric-raised-cosine frequency shift keying; computer simulation; digital modulation; indoor wireless LAN; mobile communications systems; multipath radio propagation; personal communications systems; power spectral density; spectral efficiency; Computer simulation; Costs; Digital modulation; Equalizers; Frequency shift keying; Personal communication networks; Radio propagation; Robustness; Time division multiple access; Wireless LAN;
Conference_Titel :
Vehicular Technology Conference, 1996. Mobile Technology for the Human Race., IEEE 46th
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3157-5
DOI :
10.1109/VETEC.1996.501422
