2002•Unpublished venueRequires access

Analysis of DS-CDMA System with Smart Antenna for Different Bandwidths in the Wideband Multipath Channel

Jun-Soo Jeon, Jeong-Won Lee, Cheol-Sung Kim

Abstract

In this paper, the performance of DS-CDMA system with smart antenna is analyzed for different bandwidths (1.25MHz, 5MHz) and different channel environments (rural, urban). For the analysis of smart antenna system, the vector channel having the spatio-temporal correlation is modeled as a timevariant linear filter in time, and each multipath is assumed as a reflective wave from only one direction (only one cluster) in space. Several multipaths within one chip are distinguished into each one and the strongest signal is selected. DS-CDMA system with smart antenna using wider bandwidth present better performance than that using narrow bandwidth. It is shown that the smart antenna is more effective in urban area when using 2D-RAKE receiver.

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Key concepts: Multipath propagation, Wideband, Telecommunications, Delay spread, Computer science, Electronic engineering, Channel (broadcasting), Rake receiver