Mike Burgess wrote: >Clone them (ssid & key), and then change the radio ch >of 1 only. Laptop should seek the best signal. my .02 >worth > > leave them on the same channel and you'll get better results.
>--- Richard <[EMAIL PROTECTED]> wrote: > > > >>Is there really such a thing as WiFi operating >>"seamlessly"? I assume that >>would be like the operation of cellular service. >>Wireless computer >>interface to the Internet can be accomplished by >>"dial up" through the PSTN >>Cellular and that would be seamless, but other than >>that kind of service, if >>you move from one WiFi hot spot to another, the OS >>has to re-acquire >>connection via the new hot spot. >> >>I have two WAP's and would like to configure so that >>it would be seamless to >>move between them, anyone know how? >> >> >>Richard, NCT >>N6GPP >> >>On 3/2/06, Jack Unger <[EMAIL PROTECTED]> wrote: >> >> >>>Roaming between access points may result in >>> >>> >>applications stopping >> >> >>>termporarily or dropping permanently. >>> >>> >>>Sankaran Somasundaram wrote: >>> >>> >>>>I have some basic question again. what are the >>>> >>>> >>problems that would arise >> >> >>>>with "seamless wi-fi"..One problem i know is >>>> >>>> >>interference because of the >> >> >>>>unregulated unlicensed region wi-fi operating >>>> >>>> >>in. what else could be the >> >> >>>>problems when a seamless wi-fi is promised? >>>> >>>>your help is appreciated. >>>> >>>>Thanks, >>>>Sankar >>>> >>>> >>>> >>>>On 2/28/06, Sankaran Somasundaram >>>> >>>> >><[EMAIL PROTECTED] >> >> >>>><mailto:[EMAIL PROTECTED]>> wrote: >>>> >>>> Thanks a lot Kevin and Mr.Thompson. >>>> >>>> >>>> On 2/27/06, Jim Thompson <[EMAIL PROTECTED] >>>> >>>> >><mailto:[EMAIL PROTECTED]>> >> >> >>>> wrote: >>>> >>>> >>>> kevincw01 wrote: >>>> >>>> >>>> >>>>>I don't beleive it's this simple. One problem >>>>> >>>>> >>is that the range for >> >> >>>>> 802.11g is actually less than 802.11b at the >>>>> >>>>> >>maximum throughput. >> >> >>>> The primary reason for this is that at >>>> >>>> >>the maximum modulation >> >> >>>speed >>> >>> >>>> (54Mbps .vs 11Mbps) a much higher Eb/No >>>> >>>> >>(SNR) is required for >> >> >>>> 11g than >>>> for 11b. >>>> >>>> At (nearly) equivalent bit rates (12Mbps >>>> >>>> >>11g .vs 11Mbps 11b) the >> >> >>>> Eb/No >>>> curves are almost identical. >>>> >>>> If your environment has a high delay >>>> >>>> >>spread (lots of multipath), >> >> >>>> then >>>> 11g's 800ns guard interval may get a >>>> >>>> >>signal through a lot >> >> >>>> "farther" than >>>> 11b's nominal 110ns tollerance for delay >>>> >>>> >>spread. >> >> >>>>>So you have to decide, do you want the range for >>>>> >>>>> >>the max >> >> >>>> throughput or at >>>> >>>> >>>>>just the point before it stops working? Another >>>>> >>>>> >>problem is that the >> >> >>>>>power drain is largely dependent on the >>>>> >>>>> >>manufactuer's strength >> >> >>>> of the >>>> >>>> >>>>>radio. All radios are not the same strength. >>>>> >>>>> >>Off the top of my >> >> >>>> head, >>>> >>>> >>>>>I think many pcmcia 802.11b cards are 150mW but >>>>> >>>>> >>definiteily not all >> >> >>>>>(don't quote me on that, it's just a number >>>>> >>>>> >>floating around in >> >> >>>> my head >>>> >>>> >>>>>that seems right). So you'd probably have to >>>>> >>>>> >>take the average >> >> >>>> here, or >>>> >>>> >>>>>maybe different numbers for different >>>>> >>>>> >>strengths... Then >> >> >>>> ofcourse the >>>> >>>> >>>>>cost is going to be all over the map, good luck >>>>> >>>>> >>on that one. >> >> >>>>> >>>>> >>>> The original questions are unaswerable >>>> >>>> >>without a lot more >> >> >>>> information. >>>> >>>> However, the Eb/No (SNR) curves for the >>>> >>>> >>WiMax PHYs, operated in >> >> >>>> unlicensed spectrum, at equivalent bit >>>> >>>> >>rates are approximately >> >> >>>> the same, >>>> and anyone operating WiMax or WiFi in >>>> >>>> >>unlicensed spectrum must >> >> >>>> operate >>>> under 47 CFR Part 15.247 (ISM) or 15.407 >>>> >>>> >>(U-NII), so there is >> >> >>>*no* >>> >>> >>>> inherent advantage of either WiMax or >>>> >>>> >>WiFi (compared to each >> >> >>>other) >>> >>> >>>> under these conditions. >>>> >>>> If you don't believe me, I invite you to >>>> >>>> >>study the IEEE >> >> >>>> documents carefully. >>>> >>>> *most* 802.11b cards operated with >>>> >>>> >>16-17dBm (32mW - 50mW) of >> >> >>>> transmit >>>> power. There are specialty cards with >>>> >>>> >>100mW or more of transmit >> >> >>>> power >>>> available. All other things being >>>> >>>> >>equal, building a high-power >> >> >>>> 11g card >>>> is more expensive than building a >>>> >>>> >>high-power 11b card, due to >> >> >>>> peak-to-average power ratio issues. >>>> >>>> >>Since WiMax also uses >> >> >>>> OFDM, with >>>> similar modulation envelopes, it will >>>> >>>> >>also face PAPR .vs >> >> >>>linearity >>> >>> >>>> >>>> >>>> >>>> >>>> >>>-- >>>Jack Unger ([EMAIL PROTECTED]) - President, >>> >>> >>Ask-Wi.Com, Inc. >> >> >>>Serving the License-Free Wireless Industry Since >>> >>> >>1993 >> >> >>>Author of the WISP Handbook - "Deploying >>> >>> >>License-Free Wireless WANs" >> >> >>>True Vendor-Neutral WISP >>> >>> >>Consulting-Training-Troubleshooting >> >> >>>Phone (VoIP Over Broadband Wireless) 818-227-4220 >>> >>> >>www.ask-wi.com >> >> >>> >>> >>> >>> >>> >>> >>-- >>"Being a bit scattered tends to be a trait of highly >>imaginative people." >>The more you rattle the marbles around in your >>brain, the more creative new >>connections you make, as it were >>� connections that might be lost on those focusing >>intently on just the red >>ones. >> - Ed Vogel, University of Oregon, Department of >>Neuroscience >> >> >> >> >> >> > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "SOCALWUG" group. 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