Wi-Fi (802.11) White Papers
The Mistaken Axioms of Wireless-Network Research
Overview Most research on ad-hoc wireless networks makes simplifying assumptions about radio propagation. The "Flat Earth" model of the world is surprisingly popular: all radios have circular range, have perfect coverage in that range, and travel on a two-dimensional plane. CMU's ns-2 radio models are better but still fail to represent many aspects of realistic radio networks, including hills, obstacles, link asymmetries, and unpredictable fading. This paper briefly argues that key "Axioms" of these types of propagation models lead to simulation results that do not adequately reflect real behavior of ad-hoc networks, and hence to network protocols that may not work well (or at all) in reality. The paper then presents a set of 802.11 measurements that clearly demonstrate that these "Axioms" are contrary to fact.
| Publisher | Dartmouth College | File Format | |
|---|---|---|---|
| Date Published | July 2003 | ||
| Format | White Papers | ||
| Topics | |||
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