On Sat, 2005-08-27 at 10:43 +1200, DrWho? wrote:
That sounds about right.
What you need to understand is that the 54Mbit data rate is the absolute maximum under laboratory conditions.
By the time you add protocol overhead, hardware limitations, software limitations and RF propergation limitations the reality is 2Mbits is about the best stream rate there is.
Under "burst" conditions you may get better then 2Mbits but that is assuming perfect RF conditions.
Can you provide some backing for these statements? They seem completely and utterly wrong to me. The theoretical maximum throughput of an 802.11g device in a clean environment close to the AP (no RF interference, etc) is around 30Mbps. This is a comparable level to the 6Mbps theoretical maximum throughput of 802.11b, both protocols have a theoretical maximum throughput of around 55% of the actual serialisation rate. Theories are nice, but I've never seen a 802.11b link operate at 6Mbps, I've seen 5.5Mbps though. Most of the g links I've seen have operated at about 6 Mbps, but they were in no way representative of a "normal" 802.11g link so I wouldn't take that figure as truth. The point I want to make is that DrWho's statements seem completely wrong, in ideal situations I would expect you to be able to achieve at least 10+ Mbps using 802.11g and that in my experience if you're only getting 2Mbps then there is something wrong. See http://www.proxim.com/learn/library/whitepapers/parameters_802.11g_performan... for some backup for the points and speeds I've quoted above. Cheers -- Matt Brown matt(a)mattb.net.nz Mob +64 275 611 544 www.mattb.net.nz