Qos Parameters Comparison for 802.11 B, A&G Standards

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Executive Summary

The use of wired local area networks has become ever more common place, even in situations where only a few computers need to be connected together. Advantages like cost reduction, High robustness and easy system configuration making WLAN more popular. Three different PHY layers are available for the IEEE 802.11 WLAN. IEEE 802.11b radios transmit at 2.4 GHz and send data up to 11 Mbps using Direct Sequence Spread Spectrum (DSSS), InfraRed (IR), and Frequency Hopping (FH) ; whereas IEEE 802.11a radios transmit at 5 GHz and send data up to 54 Mbps using Orthogonal Frequency Division Multiplexing (OFDM).

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