Title :
NBI suppression for code acquisition, in a DS/CDMA overlay environment
Author_Institution :
Sch. of Electron. Eng., Kwangwoon Univ., Seoul, South Korea
Abstract :
The performance of a PN code acquisition scheme is analyzed and simulated for a DS/CDMA overlay system where a CDMA user and a narrowband user coexist in the same frequency band. The narrowband user is modeled as a narrowband interference (NBI) located at a fraction of the CDMA user´s bandwidth. To suppress the NBI, an interference suppression filter is employed at the receiver frontend. From the simulation results, it is shown that the interference suppression filter is very effective for suppression of the NBI and rapid PN code acquisition in a DS/CDMA overlay environment. The analysis can be applied to practical situations for a DS/CDMA overlay environment
Keywords :
cellular radio; code division multiple access; filtering theory; interference suppression; pseudonoise codes; radio receivers; radiofrequency interference; spread spectrum communication; DS-CDMA overlay environment; PN code acquisition scheme; interference suppression filter; mobile cellular environment; narrowband interference suppression; receiver frontend; Analytical models; Bandwidth; Filters; Frequency; IEEE members; Interference suppression; Multiaccess communication; Narrowband; Performance analysis; Signal processing;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944981
