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Linux-based Mesh Router Aims at VoIP and Video
An anonymous reader writes "A startup in Santa Clara, Calif. is shipping a Linux-based mesh router aimed at VoIP and video. The Mesh Dynamics Module uses multiple radios -- along with custom real-time Linux extensions -- to create a duplexing backhaul network said to improve bandwidth more than 64 times over conventional mesh technology. Normal, single-radio access points function in a half-duplex manner, a limitation that reduces bandwidth by 50 percent for each hop in the mesh. Mesh Dynamics is attempting to solve this problem by dedicating separate radios to upstream and downstream traffic of a 'backhaul' network that relays traffic between mesh nodes, thus simulating full-duplex operation."
To do VOIP properly, should shouldn'act ack at all -- its more important that packets arrive on time than a small percentage get dropped.
In general, though, the ideas behind ax.25 are good, and maybe should be applied to other aspects of mesh networks.
if the language sounds clumsy, please excuse me, it's sunday morning and I haven't had my coffee yet!
BTW, I am working on adapting MIT roofnet mesh software/protocol to doing VOIP, we have a project with wind-powered nodes. Not to production yet, not even close. But if you're interested drop me some mail.