Title :
Advanced differentially non-coherent code acquisition in jamming and data modulation
Author :
Pirhonen, Pasi ; Ristaniemi, Tapani
Author_Institution :
Dept. of Math. Inf. Technol., Jyvaskyla Univ., Finland
Abstract :
We consider differentially non-coherent code tinting acquisition in direct-sequence code-division multiple access (DS-CDMA) communication system. An advanced method for differentially non-coherent acquisition, DC-MUSIC, was proposed and noticed to combine the benefits of both conventional differentially non-coherent matched filter and traditional MUSIC estimator in a meaningful way. We evaluate DC-MUSIC in the presence of tone jamming and data modulation. Especially, we study the effects of imperfect removal of data modulation. This is crucial for any differentially coherent/non-coherent acquisition schemes, since they exploit temporal correlation of signals. Simulation results are presented.
Keywords :
AWGN channels; Rayleigh channels; code division multiple access; correlation methods; jamming; modulation; multiuser channels; parameter estimation; signal classification; spread spectrum communication; synchronisation; AWGN channel; DC-MUSIC; DS-CDMA communication system; MUSIC estimator; Rayleigh flat-fading channel; data modulation; differentially coherent acquisition; differentially noncoherent code acquisition; differentially noncoherent matched filter; direct-sequence code-division multiple access; jamming; simulation results; temporal signal correlation; tone jamming; Delay estimation; Frequency; Jamming; Matched filters; Modulation coding; Multiaccess communication; Multiple signal classification; Narrowband; Spread spectrum communication; Timing;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1045493
