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Shadow fading is a common phenomenon in the wireless communication environment, which degrades the system performance severely. Compared with the conventional micro-diversity scheme, distributed antenna system (DAS) can work against such fading effectively. In this paper, a performance analysis of the uplink DAS using maximal ratio combining and equal gain combining diversity is done, and the analytical expressions of the outage probability and bit error ratio are derived. Here an approximation method is used and the results turn out to be quite precise. The conclusion drawn shows that DAS outperforms the conventional system significantly in the shadowing environment, and thus is a very promising technology for the future wireless communication frame.
Date of Conference: 19-21 Nov. 2008