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Impact of Multi-Antenna on the Performance of the Ad-Hoc WLAN in a Slow Rayleigh Fading Channel

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3 Author(s)
Pourahmadi, V. ; Sch. of Electr. & Comput. Eng., Tehran Univ. ; Jamali, S.H. ; Safavi-Naieeni, R.

In this paper, we evaluate the impact of the multi-antenna schemes on the performance of the ad-hoc WLAN systems in a quasi-static Rayleigh fading environment. We use a Markov chain model to calculate the saturated throughput of an IEEE 802.11 network working in an ad-hoc mode. The throughput has a random nature due to the slowly random changing environment. Hence, the cumulative distribution function (CDF) of the throughput is considered as the performance measure. The effect of different multi-antenna schemes, such as the Alamouti scheme and the maximum ratio receiver combining (MRRC) technique, on this performance measure is evaluated based on the obtained analytical results. We also study the effect of different system parameters on the ad-hoc multi-antenna WLAN performance

Published in:

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd  (Volume:3 )

Date of Conference:

7-10 May 2006