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Wireless Networks Thread, Does this sound any good to you? in Technical; ...
  1. #16
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    Quote Originally Posted by srochford View Post
    it depends on the type of wireless network device you go for. If you just buy "standard" off the shelf APs and stick them in a room then they will fight with each other. If you go for the Aruba, Cisco, Trapeze etc type systems then the central controller can do very clever things to adjust power levels so that the APs don't interfere with each other. this also means that even if you've got 2 APs close to each other, the laptops ought to pick up the one they're closest to and play nicely.

    I don't like the idea of one big point for a set of rooms (as in button_ripple's original post) - if that point fails then you lose everything which is surely not a good idea!
    Cisco, Aruba, Trapeze, Ruckus etc are all built on the same chipsets from Atheros.
    It is the extremely clever, unique and diverse technology that Ruckus put on top of these Chipsets that make the wireless performance outstanding.

    Omni-directional antennas:
    • Cannot control interference to neighbouring AP or multipath phasing
    • Have no interference rejection
    • Make bad RF neighbours

    Ruckus Smart antennas:
    • Like a torch, beam-steering focuses the energy ensuring multipath arrives in phase and provides maximum signal density. Giving extended range and superior performance
    • Attenuate interference from adjacent AP’s, clients and other RF sources
    • Cause significantly less interference to adjacent AP’s

    Stuart White

  2. #17

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    Really liking the sound of this Ruckus stuff, and towards Christmas would like to get a few demos arranged in preperation for the next financial year.

    We have two laptop trolleys that have their own AP's with them, and although things are better this year since shutting down alot of the AP's around the school (they weren't being used) we still have the occasional problem where signal is dropped for no reason. Managed to get a fixed Network Point in every classroom during the holidays so WiFi for teachers and teachers desktops has become not as vital except for key areas (Library, Staff Room & Hall) where I've got some ProCurve kit covering. However, due to the school being right in the middle of a residential area, we're picking up BT HomeHubs all over the place.

    I've managed to resist the request for a 3rd Trolley. I have one technician whose sole job at the moment is running around setting up laptops for each period.

    However, I want to get something in place next year the has a guarantee that any laptops will work in whatever room we have to put them in and not faf around with seperate APs.

    Pete

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    jsnetman's Avatar
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    We wireless networked our school literally by trial and error and does not take that much effort or expense. Initially bought 15 access points and dotted them around the areas most likely to cover the widest area. Qiuckly found we needed more and installed them as necessary. Why pay a company for a solution which is essentially a very easy project to complete in-house.

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    Quote Originally Posted by jsnetman View Post
    We wireless networked our school literally by trial and error and does not take that much effort or expense. Initially bought 15 access points and dotted them around the areas most likely to cover the widest area. Qiuckly found we needed more and installed them as necessary. Why pay a company for a solution which is essentially a very easy project to complete in-house.
    jsnetman,

    The wireless configuration and initial setup from Ruckus is by far the easiest I have ever seen in my life as an engineer. So in turn no engineer is needed to visit on the customers site to install the kit.

    • Plug ‘n’ play, mesh capable, easy to install/expand
    • 5 minute wizard-based installation
    • Advanced security, simplified

  5. #20
    jsnetman's Avatar
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    The wireless configuration and initial setup from Ruckus is by far the easiest I have ever seen in my life as an engineer. So in turn no engineer is needed to visit on the customers site to install the kit.

    Plug ‘n’ play, mesh capable, easy to install/expand
    5 minute wizard-based installation
    Advanced security, simplified
    Yes ok, but how much does it cost over and above the price of the equipment?

  6. #21
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    Quote Originally Posted by jsnetman View Post
    Yes ok, but how much does it cost over and above the price of the equipment?
    jsnetman,

    I'm in technical and prefer to stay well away from the pricing.
    The best thing to do is contact my sales guy Mark Power on 01473 281211.

    He is currently in a Webinar but will be out in 45minutes.

    Kind Regards
    Stuart

  7. #22

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    Also be sure to take a look at wireless the solutions that Extricom can provide for your school,

    If you would like any further info or a demonstration of what Extricom can do for you be sure to let me know as our sister company T James Communications specialise in wireless communications for the educational sector,

    Below an overview of Extricom.

    Extricom is the designer and manufacturer of the award-winning Interference-Free™ Wireless LAN System, a new generation of enterprise WLAN infrastructure for providing converged data, voice (VoWLAN), and video services.

    This unique wireless system delivers the lowest total cost of ownership, at the same time as achieving a performance leap in capacity, coverage, and seamless mobility. All this, while making deployment and management radically easier than anything in the market today. The result is a large-scale WLAN infrastructure for enterprise-wide triple play services, with the dependability and performance of a wired network.

    While adhering to the 802.11 a/b/g standard and remaining completely client-agnostic, the patented Interference-Free architecture takes a completely new approach to the way the infrastructure is deployed. At the heart of Extricom’s innovation is the “channel blanket” topology, which allows each Wi-Fi channel to be used everywhere, on every access point, to create blankets of coverage.

    The result is a completely different experience for the system owner and user: significantly greater bandwidth and coverage than traditional WLANs, seamless mobility with no AP-to-AP handoffs, the elimination of RF cell planning and co-channel interference, and the ability to offer a performance guarantee for both connection rate and bandwidth. This is the best of the wired and wireless worlds – the simplicity, flexibility, and performance of wired networks, together with the mobility and ubiquity of WLANs.

    Extricom’s multidisciplinary research team brings together expertise in spread-spectrum radio, communications systems and protocols, networking, embedded systems, and optimization software. Our management team has proven success in the development, manufacturing, and commercialization of leading-edge communications solutions. Extricom's intellectual property includes a portfolio of patents in the area of WLAN architecture, optimization, and deployment that is responsible for Extricom’s leading position as a provider of high-performance WLAN solutions.

    Our customers include universities, healthcare/medical campuses, municipalities, primary and secondary school boards, and hospitality concerns. Whether it is for increased capacity, support for mobile Wi-Fi voice, or to more effectively serve diverse groups of users, all of our customers have discovered the radical leap in ease of ownership and uncompromising performance that are the hallmark of Extricom innovation
    Last edited by CPLTD; 1st October 2008 at 11:14 AM.

  8. #23

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    My wifi deployment now seems to be stable using Odessey as the supplicant on the clients rather than the built in one.

    I'm just waiting for some pricing on it.

    Ben

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    Pete10141748's Avatar
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    We wireless networked our school literally by trial and error and does not take that much effort or expense. Initially bought 15 access points and dotted them around the areas most likely to cover the widest area. Qiuckly found we needed more and installed them as necessary. Why pay a company for a solution which is essentially a very easy project to complete in-house.

    Part of me agrees with you; certainly putting some screws in the wall to hang APs on, figuring out where to put APs based on your current setup / known areas need etc. is no a big deal - certainly, if I'd been given even just £300 for some basic WAPs 14 months ago, I could have put in place something that would have, if nothing else, tied us over until a full-whack system was put in.

    On the other hand, by having a 3rd party company install it, any problems/issues with equipment and coverage not being what it should falls entirely in their lap - and not into yours.

    Also, you'll probably find that many Heads / SMTs would feel much more at ease having a "professional" company take responsability for what is a pretty crucial system.


    At the end of the day, I'm happy to have an outside company do the work, as it's a plate off of my lap, if it goes t*ts-up I can say "I told you so" to the Head/SMT re: why laptops wont work well even with great kit, and it means I can come back after a nice week off in half term to an (almost) finished system.


    Plus, after over 15 months without a suitable wireless in place, I just want it DONE and over with

  10. #25
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    In relation to using a 3rd party it is great as long as the cost is kept to a minimum otherwise it just pushes the budget out the window and it gets a no from the head.

    We have experienced with Ruckus Wireless that you can have a succesful wireless solution without the need for paying someone to install it due to easy configuration set up.

    Self configuring access points alow plug and play.

    We offten visit schools and demo the set up and it will take 10 - 15 minutes and you have wireless and that has not cost a penny of installation services, the head would love that

    Seriously it is well worth a look, you can have us come and set it up and show you how to use it, do a site surevey and then leave you to play with it for two weeks at no cost to you....Well maybe a cup of coffee and a chocolate digestive, that way you can have users testing in a live site.

    Let us know what you think, if you want to pick up the phone we can go through the tecnical side in detail I can talk about it for ages as I love it.

  11. #26

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    Quote Originally Posted by Pete10141748 View Post
    Part of me agrees with you; certainly putting some screws in the wall to hang APs on, figuring out where to put APs based on your current setup / known areas need etc. is no a big deal - certainly, if I'd been given even just £300 for some basic WAPs 14 months ago, I could have put in place something that would have, if nothing else, tied us over until a full-whack system was put in.

    On the other hand, by having a 3rd party company install it, any problems/issues with equipment and coverage not being what it should falls entirely in their lap - and not into yours.

    Also, you'll probably find that many Heads / SMTs would feel much more at ease having a "professional" company take responsability for what is a pretty crucial system.


    At the end of the day, I'm happy to have an outside company do the work, as it's a plate off of my lap, if it goes t*ts-up I can say "I told you so" to the Head/SMT re: why laptops wont work well even with great kit, and it means I can come back after a nice week off in half term to an (almost) finished system.


    Plus, after over 15 months without a suitable wireless in place, I just want it DONE and over with
    As your only based down the road from us , we are in Kettering , I can arrange for one of our guy's to pop and see you and show you the benefits of using Extricom as a wirless solution for you,


    Let me know and I get the out to you asap,

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    Quote Originally Posted by FN-GM View Post
    One thing to keep in mind is don't have to many AP's close together. In my school we had 2 near each other, the laptops couldn't decided what AP to use they kept disconnecting from one and connecting to the other.
    There is a setting in the Intel drivers if you're using the 2200BG's and up "Roaming aggressiveness" that may helpwith that.

    Craig

  13. #28
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    Thumbs up

    Quote Originally Posted by FN-GM View Post
    One thing to keep in mind is don't have to many AP's close together. In my school we had 2 near each other, the laptops couldn't decided what AP to use they kept disconnecting from one and connecting to the other.
    If you have 3 access points with Omni Antennas in close proximity and you add a 4th you will experience hell in the wireless world!

    This is because there are only 3 channels in the 2.4Ghz Spectrum (G Radio), so adding another access point will cause "fights and arguments" between the AP's as to who is using what channel resulting in a very poor signal.

    *Imagine you have 3 light bulbs at close range (these will be our Omni Antennas), spraying signal everywhere, running individually on the 3 different channels. You add a forth and it has to use one of these channels, now we have for bulbs shinning out and overlapping these channels = Bad Times.

    *Now imagine we have 3 torches (Ruckus Access point infact) running these same channels. We add our 4th torch! Without any issue’s as no signal is overlapping with its neighbour, it is just focusing it energy on where it needs to be as opposed to just throwing it out and hoping for the best. This in turn makes Ruckus Wireless (as tested) the most reliable Wi-Fi out there.

    • BeamFlex antenna directs Wi-Fi signals to clients
    • Automatically adapts to moves, adds and changes
    • Automatically rejects Interference
    • Steers signals around impenetrable obstacles
    • BeamFlex antennas make “good RF neighbors”



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