[Madwifi-users] which is the best mode for point to point links
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From: David G. <dav...@bt...> - 2008-07-02 09:46:19
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There are two choices for point to point links, master/managed and ad-hoc. On one level ad-hoc seems the obvious one as it avoids the AP scanning for new clients etc, but ad-hoc connections seem to get high numbers of collisions under high bi-directional load and so performance suffers, with master/managed at least one end thinks it is in control. I suppose that the new 802.11q stuff (I think I have the right letter) which does things like bulk acks or even turns off wireless level acks would help but then again does it apply to both modes? I realise that stated like that this question is not strictly a madwifi question, but I am implementing these links using madwifi so I am quite happy to use settings that are madwifi specific. Have there been any studies of this kind of problem? It seems odd that there is not a mode designed for this, with just the two stations, and a ping-pong like protocol where each side sends what it has to send (to a limit) and then waits for a reply. But then I suppose 802.11 was not really designed for point to point links. Any ideas greatfully received, David |