I have to survey a large hall for wireless coverage to support Voice. The internal structure does not provide support posts in one large area. The free standing area is ~180 x 100 feet. The ceiloing is 30 to 40 feet.
How do I design redundant coverage using 802.11b/g?
Higher gain antennas from the ceiling, it seems would result in too much channel overlap.
What about yagis (ceiling, pointing downard) ? You could solve the overlap issue with their coverage pattern... I use hem in this kind of scenario and it could work, even if the distance is short. You would probably have to work on transmit power also...