Title :
MFSK-based modulations for hybrid DS/FH-CDMA systems operating in slowly Rayleigh fading channels
Author :
D´Amours, Claude ; Yongaçoglu, Abbas
Author_Institution :
Dept. of Electr. & Comput. Eng., R. Mil. Coll. of Canada, Kingston, Ont., Canada
fDate :
8/1/1997 12:00:00 AM
Abstract :
This paper presents an analytical evaluation of a direct-sequence/frequency-hopped code-division multiple-access (DS/FH-CDMA) system in a Rayleigh fading environment. The modulations under consideration are noncoherent M-ary-frequency-shift keying (MFSK) and an MFSK-based joint-frequency phase modulation utilizing differential binary phase-shift keying (PSK). Multiple-access interference has been taken into account, and the spectral efficiency for uncoded as well as convolutionally coded systems has been calculated
Keywords :
Rayleigh channels; cellular radio; code division multiple access; convolutional codes; differential phase shift keying; diversity reception; fading; frequency hop communication; frequency shift keying; land mobile radio; pseudonoise codes; radiofrequency interference; spread spectrum communication; MFSK-DBPSK; MFSK-based joint-frequency phase modulation; Rayleigh fading channels; convolutionally coded systems; differential binary phase-shift keying; direct-sequence/frequency-hopped code-division multiple-access; hybrid DS/FH-CDMA systems; multiple-access interference; noncoherent M-ary-frequency-shift keying; spectral efficiency; Bandwidth; Bit error rate; Fading; Frequency; Interference; Modulation coding; Multiaccess communication; Phase modulation; Phase shift keying; Rayleigh channels;
Journal_Title :
Vehicular Technology, IEEE Transactions on
