There will be as many opinions as there are vendors, but I contend that 802.16d is the better WiMAX standard for 3.65 GHz. There will be no mobile in 3.65 GHz; the power limits available for mobile under the rules simply are not workable at all. Going to .16e route does allow you access to 4x MIMO, but that is too expensive for 3.65 since it intended and priced for mobile -- $60k or more in CAPEX for one cell is way too much for the WISP world. Consider that with 802.16d, you can buy a complete 3 sector, almost 60 mbps cell with all pieces and parts for under $20k (at least from us). You can use some 2x MIMO and that will improve your range somewhat over no MIMO, but at what cost? Single order diversity will still get you many miles radius of coverage per cell and you'll save at least 1/2 the cost vs. the same capacity in 2X and much less still compared to 4X.
802.16d also provides for lower latency (since it is not designed to keep track of mobile clients it has less overhead) and larger channel sizes. In the end, both standards are legit; they are simply intended to do different things. The old rule of buying the right tool for the job is the classic saying that comes to mind. Patrick Leary Aperto Networks 813.426.4230 mobile -----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Michael Baird Sent: Wednesday, April 22, 2009 10:26 AM To: WISPA General List Subject: Re: [WISPA] 3650Mhz and Wimax Vendors It was interesting, but I was hoping for some more first hand experience reporting. Essentially the only explanation for improved range was a lower noise floor, which isn't a wimax thing, but a 3.65 thing. I think a lot of the 802.16d/e talk is market speak, I'm trying to get through that and establish technical reasons why one or the other is superior. Regards Michael Baird > So the recent thread on Wimax was quite interesting. I need to read up > on the different technologies involved. I believe that a fixed > deployment is sufficient for many many many needs and markets > (wireless local loop if you will). If people want mobility/end user > wireless they can hang an 802.11 AP off the ethernet port of whatever > CPE. Wimax directly to the end device doesn't make much sense to me, > in most markets and use cases. Obviously if you are supporting a > highly mobile workforce (say public sector type stuff) then it makes a lot more sense. > > It got me thinking... if one was a new WISP entering an un(der)served > market, it seems that it would not make sense to deploy standard > 802.11 gear, but rather Wimax gear in 3650Mhz. Is this an accurate assessment? > > One particular area that I'm targeting, doesn't have any broadband > available (other then 3g from Verzion). So they would need to purchase > CPE anyway, and it wouldn't be anything they could get from Best Buy > (DSL or Cable modem). > > I'm in the process of negotiating access to the excluded areas (in > Southern California), but it's been slow going. Once I gain access it > will open up many areas to some sorely needed competition. > > So who are the vendors in this space worth considering? > What are peoples experiences with the sales process (both pre and post > sales engineering) etc etc. > > > > ------------------------------------------------------------------------ -------- > 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/
