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Wireless Mobile Communications
Wireless Local Area Networks Wlans
Q
Which of the following spread spectrum techniques were used in the original IEEE 802.11 standard?
AA. Fhss and dsss
BB. Thss and fhss
CC. Thss and dsss
DD. Hybrid technique
Correct Answer:
A. A. Fhss and dsss
Explanation:
Original IEEE 802.11 used both the approaches of FHSS (Frequency Hopping Spread Spectrum) and DSSS (Direct Sequence Spread Spectrum). But from late 2001s, only DSSS modems are used within IEEE 802.11.