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This paper studies and measures the effect of different security algorithms on the performance of a wireless LAN. Real experiments were performed on a wireless LAN and the data obtained was analyzed for throughput, jitter and delay under different security scenarios. Both TCP and UDP traffic streams were analyzed at three different data rates. The effect of congestion is also measured. The results tell that no important degradation in performance occurs by enabling security algorithms in a wireless LAN. In low bit rate, it shows there is no important degradation, but in case of high rate more than channel rate, it shows there is influence.
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