Abstract
Usually employed at the receiving end to avoid deep fading, the well-known spatial antenna diversity technique may have different gain properties for the second generation global system for mobile communication (GSM) and the third generation wideband code division multiple access (W-CDMA) system because of the difference in channel bandwidth and receiver architecture. By means of statistical analysis, the diversity gain for these two systems is derived for both line-of-sight (LOS) and non-LOS (NLOS) channels. The theoretical results are verified by numerical simulation and experimental measurement. The GSM system always has better diversity gain (4-10 dB) than the W-CDMA system (1-4 dB) in a typical wireless channel with a K-factor from 0 to 8 dB.
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