The correct answer is: A. 1 – 100 Mbps.
HIPERLAN is a high-speed wireless local area network (WLAN) standard. It was developed by the European Telecommunications Standards Institute (ETSI) in the early 1990s. HIPERLAN has two variants: HIPERLAN/1 and HIPERLAN/2.
HIPERLAN/1 operates in the 2.4 GHz band and provides a data rate of up to 23 Mbps. HIPERLAN/2 operates in the 5 GHz band and provides a data rate of up to 54 Mbps.
The range of asynchronous user data rates provided by HIPERLAN is 1 – 100 Mbps. This means that the data rate can be adjusted to meet the needs of the application. For example, if a user is transferring a large file, the data rate can be increased to speed up the transfer. However, if a user is simply browsing the web, the data rate can be decreased to conserve battery power.
The other options are incorrect because they do not represent the range of asynchronous user data rates provided by HIPERLAN.