Which of the following modulation schemes does 802.11g employ for communication?
A)DHSS
B)AHSS
C)OFDM
D)FHSS

Question

Quizplus · Accepted Answer

802.11g employs OFDM for communication.
Key Takeaway: Orthogonal Frequency Division Multiplexing (OFDM) is a frequency-division multiplexing scheme utilized as a digital multi-carrier modulation method. A large number of closely-spaced orthogonal sub-carriers are used to carry data. The data is divided into several parallel data streams or channels, one for each sub-carrier. Each sub-carrier is modulated with a conventional modulation scheme at a low symbol rate, maintaining total data rates similar to conventional single-carrier modulation schemes in the same bandwidth. The primary advantage of OFDM over single-carrier schemes is its ability to cope with severe channel conditions.

Which of the Following Modulation Schemes Does 802