Square ONE Question

Discussion in 'Wireless Networking' started by WGD, Aug 10, 2007.

  1. WGD

    WGD Guest

    Here is a real-life question. I have an application "similar" to
    connectivity, let's say, in a long airport corridor. As users can today
    WiFi-connect to the Internet while waiting for a plane, what do I need to
    permit 100 users to connect to a server located at one end of the corridor?
    Users need to connect to the server only, NO Internet connection currently
    required, data from and to the server only.

    How do the parameters change when the number of users is increased to 500?
    User connection will be random, sometimes 10 at a time, sometimes 100 at a
    time.

    It is desired that client hardware contain NO hard drives, working RAM and
    memory to store the application only.

    Please help/advise or vector me to a book or paper on this subject ~ and
    Thank You.

    WayneD
     
    WGD, Aug 10, 2007
    #1
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  2. WGD

    WGD Guest

    BTW, long-airport-corridor is used here to help picture the application
    environment/
     
    WGD, Aug 11, 2007
    #2
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  3. WGD

    Lem Guest

    This is not a Windows-related question. Further, a wireless "hotspot"
    that has the capacity for 100 or 500 simultaneous users will require
    commercial equipment rather than the SOHO equipment typically used by
    most of the people who post here.

    You have multiple issues. How many clients a wireless access point can
    service simultaneously depends both on the computing power of the AP and
    the bandwidth available (and the bandwidth you expect the users to
    require). You also probably will have to have multiple access points,
    and how they are configured (e.g., mesh network or some sort of roaming)
    is beyond the scope of the newsgroup.

    You can certainly build a computing "appliance" that doesn't require a
    hard drive. Whether this capability is included in or separate from the
    wireless access point would be another design choice.

    Perhaps someone here will be able to point you in more specific
    directions, but for starters you might look at
    http://www.bbwexchange.com/turnkey/
    http://www.bbwexchange.com/hotspots/
    Although that one of those sites discusses designing a wireless Internet
    Service Provider, and you don't require that, the Internet connection
    really is the simplest part of designing a WISP.

    Or Google for "hotspot design"

    alt.internet.wireless also may be a useful source.
     
    Lem, Aug 11, 2007
    #3
  4. WGD

    WGD Guest

    Lem ~ Thank You for the speedy and concise reply. Others, as Lem suggested,
    appreciated.

    Wayne D
     
    WGD, Aug 11, 2007
    #4
  5. WGD

    brush-head Guest

    You might like to think about some form of thin client. This way network
    traffic is reduced, security can be bolted down and if internet access
    is required later then it can be provided with better security than the
    clients, at the server end via a gateway connected to it.

    Even if conventional Wi-Fi technolgies are used, with the above solution
    security is controlled at the server end and not the client (always the
    weakest point). If you use a Unix type client it can be even more secure
    and old PC's used as terminals. Wi-max as an alternative to Wi-Fi will
    also give greater range and support more concurrent devices than Wi-Fi.
     
    brush-head, Aug 11, 2007
    #5
  6. WGD

    AJR Guest

    WGD - your network is not really complex - some of your "parameters" do not
    make sense. First "...I have an application "similar" to
    connectivity..."?????

    Reference to "a long airport corridor" seems to refer to a physical
    constraint - In an actual network the constraint can be "physical" or
    "electrical" to reduce or restrict activity/ not problem there..
    The requirement of no Internet access reduces design complexity to, and
    based upon your assumptions, an "intrannet".

    As to the number of consurrent connections - there would have to be an
    assumption as to the number at any given time and Server access configured
    accordingly.

    There are some problems with "...It is desired that client hardware contain
    NO hard drives, working RAM and memory to store the application only....".
    First: such client hardwasre is "old stuff" - in the past referred to as
    dumb terminals (workstations) - terminal functions still in use today.

    Second: "...working RAM and memory to store application only..." does not
    (pardon the pun ) compute. Note from your post "...data from and to the
    server only...." - all applications/data (under your scheme) would be
    located on the server(s) - the clients would access applications on the
    server and would "manipulate" data on the server meaning no data to the
    client.

    Wayne, lastly, regarding "...Please help/advise or vector me to a book or
    paper on this subject ..." - there must be a Barnes and Noble, or other
    bookstore nearby.
     
    AJR, Aug 11, 2007
    #6
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