Multipath Measurement in Wireless LANs AN 9895 . 1 Application Note October 2001

When comparing wireless LAN PHY products, it is customary to define performance in terms of the delay spread that can be tolerated. However, as we show in this tech brief, delay spread is NOT an indicator of performance unless the parameter is well defined and is related to a known channel model. In other words, simply knowing “the delay spread” of a particular system is meaningless without knowing more about that parameter and the channel model that was assumed.