On Tue, 12 Jan 2010, Richard Chycoski wrote: > da...@lang.hm wrote: >> On Tue, 12 Jan 2010, Richard Chycoski wrote: >> >>> I would also configure all of the APs for 'b' only (no 'g') to get the >>> maximum use of your channel space. Mixing AP types as you have suggested >>> may cause you more headaches, but then since $WORK builds our own, it's >>> easy for us to use all the same AP everywhere - but it sure does make WiFi >>> roaming between the floors (and buildings) less troublesome. >> >> b and g use the same channels, just at different speeds. I would expect >> that everyone would be using g nowdays, and the more people who use g the >> shorter the transmissions, and the less cluttered the airwaves > g uses groups of b channels. If you restrict the network to b, you get more > channels to work with, and providing a cell structure is more practical. > Besides, if any b devices come onto the net, it becomes b anyway. Any g > device can operate as b, and I think that throughput is going to be the least > of your worries - channel overlap and contention are likely to render g > pretty well useless.
no, g and b have the same RF footprint, in both cases each channel is wide enought that it overlaps several adjacent channels. To avoid this interferance the only channels that you can use are 1, 6, 11. It doesn't matter if you are using b or g. >>> Especially if this is one, big convention room floor (or even a few big >>> cavernous halls), >> >> I'm not that lucky. I have one middling size convention room floor on one >> floor, and a bunch of smallish rooms spread out on the second floor > That may actually work out to your advantage. Large, single areas are the > most difficult to service. Individual rooms have those nice walls that > attenuate the signals, so you may be able to put the rooms in groups of two > or three with a single access point between them. I do suggest that you look > at putting the APs on the ceilings, or at least above crowd level, to > minimise 'ugly bag of mostly water' absorption. this is also why I am thinking of directional antennas, I've got a couple of rooms that are offshoots of the main area, and I think a directional antenna in the back of the room pointing away from all the other rooms should do a fair job of covering that area without overlapping the other rooms. the second floor is a Z shape, a east west hallway with rooms on it, on the west end a room/hallway going north, and on the east end a hallway rooms going south. >>> expect to be 'the guy' getting cursed at for the lousy wireless service - >>> it's part of the gig, y'know! ;-) >> >> yep, I just hope to do better than I've seen before. > I wish you luck with the install, but if you end up resorting to Scotch at > the end of the week, we'll all understand! Scale is a friday-sunday show (I can get in thursday to setup the equipment) so it's not quite that bad. the downside is that I don't get much time to fix things either :-( David Lang _______________________________________________ Discuss mailing list Discuss@lopsa.org http://lopsa.org/cgi-bin/mailman/listinfo/discuss This list provided by the League of Professional System Administrators http://lopsa.org/
