On Wed, Feb 8, 2012 at 6:16 AM, Sridhar Dhanapalan <srid...@laptop.org.au> wrote: > Ad-hoc connections only scale to a limited number of participants > before problems begin to occur.
The technically correct answer is "it depends". And it is true, it depends on a ton of factors. As a rule of thumb, I've seen it work for groups of 5~6 units, physically close and without interference sources or reflective materials. I would not aim higher than that -- 5~6 units in a channel. You have 3 channels, so 3 groups of 5~6 units. To clarify: keep any other laptops and cordless phones in the vicinity _off_, to allow these 18 users to work. In practice, it won't work in a school, but if you invite a few schoolmates home after school, or in the park, you're fine. No warranties expressed or implied. There's a long laundry list of things that can interfere, and make things not fine. For example, professional TV cameras from that friendly news crew transmit in the 2.4GHz band. That battery pack feeds a powerful antenna to get the signal back to the van that has the uplink, and it paves over consumer-grade wifi. So don't count in wifi (of any kind!) to work for a demo or show-and-tell when you get TV coverage at a school :-) > Can we impose a hard limit on the number of clients to prevent too > many XOs connecting to a single ad-hoc session? As James says... unfortunately no. m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
