Oops. I missed the conference center part of this. I was thinking town level.
It'll still be a large challenge. I'd be sure to run an abg network. Hopefully some can use the a to take a load off of the b/g. laters, marlon ----- Original Message ----- From: "Marlon K. Schafer" <o...@odessaoffice.com> To: <scubac...@gmail.com>; "WISPA General List" <wireless@wispa.org> Sent: Thursday, January 15, 2009 7:34 AM Subject: Re: [WISPA] planning 802.11 Wi-Fi for extremely dense areas > You build a system with multiple layers. Very high end backhaul (ptp > wireless, fiber etc.). Then higher end gear like redline for a middle > mile > system. Lastly, you use good ap's (MT or StarOS) for distribution. > > I'd use a radius authentication mechanism for this. You can then use any > off the shelf isp management system to authenticate users. If you use MT > units for your distribution you'll easily be able to handle CALEA requests > etc. > > We'd also need to know a bit about the geography of the area. One of the > hardest things to do will be to create distribution points that have > acceptable coverage but don't interfere with each other. > > One more thing. Are they planning to cover inside of every structure in > the > coverage zones? If so, run. Run like hell. So far I know of NO > successful > deployments like this. It just won't work with today's technology > limitations. > > You might also want to conceder hiring some consulting help with this. > Several of us here have tried to help people pull off projects like this > in > the past. Most people make the same mistakes over and over again. If > anyone can make this work, a few here can. Most "professional" > consultants > won't stand a chance. And working with the likes of Cisco, Lucent etc. > pretty well guarantees failure. > > laters, > marlon > > ----- Original Message ----- > From: "Rogelio" <scubac...@gmail.com> > To: "WISPA General List" <wireless@wispa.org> > Sent: Thursday, January 15, 2009 2:32 AM > Subject: [WISPA] planning 802.11 Wi-Fi for extremely dense areas > > >> Within the last few weeks, I have gotten several inquiries about setting >> up 802.11 wireless access services for thousands (1000-5000) of people >> in a conference sort of area (assuming 100% subscription rate, which I >> think is sort of unreasonable, but that's another story), and I have >> told them that based on what I know, the 802.11 protocol breaks at those >> numbers. >> >> Is there any 802.11-based solution that can handle this density? The >> only way I have seen people get around it (like at the Superbowl press >> areas with tons and tons of people) is to try to offload a significant >> number of users on Ruckus devices using cat5. >> >> Does anyone have any suggestions here? In these situations, I would >> just probably put in a ton of smaller access points and then turn the >> power WAY down and then plan some sort of non-overlapping channel plan >> with 802.11a and 802.11b/g. I have heard of other solutions (e.g. >> Proxim) having soft limits on numbers of associations one each AP so >> that they can, at least, guarantee good coverage with the few who are >> able to associate to that access point. >> >> Anyone have any other ways around this? Based on what I know, access >> points (fat or thin, regardless of the model) crap out at around... >> >> --about 250 MAC associations >> --about 50 client associations >> --about 25 hardcore user sessions >> >> Any and all advice on the topic is welcome (even if it is to just tell >> me I'm stupid for even considering talking to these customers!) >> >> >> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: wireless@wispa.org >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
