QDMA (quad-division multiple access)
Technology, owned by MeshNetworks and based on work at the Defense Advanced Research Projects Agency, for building a wireless network based on applying peer-to-peer concepts to CDMA.
Instead of fixed access points or towers, QDMA turns every device on a network into an ad-hoc transceiver able to route voice and data packets (the original DARPA project was to develop a wireless network for battlefields).
MeshNetworks claims this approach can result in burstable speeds of up to 6M bit/sec at far less cost than a traditional wireless network in the 2.4Ghz spectrum, as well as reducing congestion and problems caused by line-of-sight obstacles.
Additional resources
Technology overview from MeshNetworks
Disruptive technologies on the 2002 horizon
Includes a look at QDMA. Wireless Internet, 01/07/02.
The patent on which QDMA is based.
Wireless/Mobile Research Center
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