DocumentCode :
3341813
Title :
The effect of propagation on wideband DS-CDMA systems in the suburban environment
Author :
Gingras, Donald F. ; Gerstoft, Peter
Author_Institution :
Naval Command, Control & Ocean Surveillance Center, San Diego, CA, USA
fYear :
1997
fDate :
16-18 April 1997
Firstpage :
333
Lastpage :
336
Abstract :
Direct sequence code division multiple access (DS-CDMA) methods are being used by the cellular industry to provide a multiple access method with improved performance. Recently wideband CDMA systems have been proposed, the wideband waveforms require on the order of 5 to 15 MHz of bandwidth. In this paper the effect of channel propagation on the performance of wideband systems is examined. Since traditional narrowband analysis will not be sufficient for these systems wideband methods based on calculating the time domain channel impulse response are employed. The wideband channel response is modeled using a broadband parabolic equation propagation model. Presently, only two-dimensional range dependent propagation is considered, contributions due to out of plane scattering are not included.
Keywords :
cellular radio; code division multiple access; land mobile radio; parabolic equations; spread spectrum communication; telecommunication channels; time-domain analysis; transient response; bandwidth; broadband parabolic equation propagation model; cellular industry; channel propagation; direct sequence code division multiple access; modelling; performance; propagation effect; suburban environment; time domain channel impulse response; two-dimensional range dependent propagation; wideband DS-CDMA systems; wideband waveforms; Base stations; Direct-sequence code-division multiple access; Electrical equipment industry; Frequency; Industrial control; Multiaccess communication; Narrowband; Oceans; Surveillance; Wideband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Advances in Wireless Communications, First IEEE Signal Processing Workshop on
Conference_Location :
Paris, France
Print_ISBN :
0-7803-3944-4
Type :
conf
DOI :
10.1109/SPAWC.1997.630382
Filename :
630382
Link To Document :
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