New ways of benchmarking WLAN systems

摘要

Benchmarking wireless products in any form is notoriously difficult, especially in comparative tests. The primary culprit is the behavior of the radio channel itself. This is the element of the physical universe that carries the radio signal from Point A to Point B (we hope), We say "we hope" because, while radio certainly obeys the laws of physics, there are many statistical variables in radio transmissions. For example, it's impossible to determine exactly how, or even if, a given radio signal will propagate under a given set of conditions. In addition, there are a variety of forms of signal fading and interference. Antenna orientation is yet another variable. Any good benchmark must take these factors into account and minimize their impact on the results.