Analysis on the inter-system interference due to intermodulation in DS/CDMA and TDMA coexistent cellular systems

Author

Lin, Nan ; Sampei, Seiichi ; Morinaga, Norihiko

Author_Institution

Graduate Sch. of Eng., Osaka Univ., Japan

fYear

1998

fDate

22-24 Oct 1998

Abstract

In this paper, detailed investigations are given on the inter-system interference between a DS/CDMA cellular system and a strong TDMA system in the downlink operated in the same area using the adjacent spectrum. Based on a simulation model which is taking into account various realistic factors for CDMA cellular systems, we have evaluated the impact of intermodulation between DS/CDMA and TDMA on the outage probability of CIR. The simulation results confirm that U/D has a strong impact on the reduction of system capacity while wider channel spacing between DS/CDMA and TDMA, and high peak back off of the amplifier can improve output CIR

Keywords

adjacent channel interference; cellular radio; code division multiple access; intermodulation; radiofrequency amplifiers; spread spectrum communication; time division multiple access; CIR; DS/CDMA; TDMA coexistent cellular systems; amplifier; channel spacing; downlink; inter-system interference; intermodulation; outage probability; simulation model; system capacity; Broadband amplifiers; Downlink; Interference; Multiaccess communication; RF signals; Radio frequency; Radio spectrum management; Radiofrequency amplifiers; Receivers; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on

Conference_Location

Beijing

Print_ISBN

7-80090-827-5

Type

conf

DOI

10.1109/ICCT.1998.740955

Filename

740955