Which type of modulation technique is used in local area wireless networks (LAWNs)?

Local Area Wireless Networks (LAWNs), commonly known as Wireless LANs (WLANs), typically use

Orthogonal Frequency-Division Multiplexing (OFDM) as the modulation technique. OFDM is a

method of encoding digital data on multiple carrier frequencies. It is known for its efficiency in

carrying high data rates over radio waves and its robustness against narrowband interference and

frequency-selective fading due to multipath. This makes OFDM a suitable choice for LAWN

environments where such conditions are prevalent.

Reference: The use of OFDM in WLANs is well-documented and is a standard practice in the

industry. It is mentioned in various educational resources and official certification study guides

related to network security and wireless communication standards12.