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ALL clients on same channel? Interference?

Discussion in 'Networking Issues' started by rpeters83, Mar 7, 2006.


Will it cause interference issues?

  1. Yes

  2. No

    0 vote(s)
  1. rpeters83

    rpeters83 Network Guru Member

    Will I have interference issues if 1 or 2 or the clients on my router are on a different channel?

    Say the router and mine are on channel 1 and the others are not. would that cause interference and/or drop-out issues?

    I'm trying to battle my interference/dropout issue :cry:

  2. jgutz20

    jgutz20 Network Guru Member

    The router is configured with the channel, the desktops connect to that particular channel
  3. rpeters83

    rpeters83 Network Guru Member

    so i guess the answer is no then.
  4. Thibor

    Thibor Super Moderator Staff Member Member

    the answer is no, the wireless clients couldn't connect to your router from a different channel than the router, it is necessary. you may start having bandwidth issues with multiple wireless clients all being busy at the same time, but there isn't any inteference consideration
  5. rpeters83

    rpeters83 Network Guru Member

    ok thank you.

    my last question.

    my card obviously allows me to change the channel, however, i am still able to connect to my router (on channel A) while my card is set on channel B. does the card automatically detect the channel? what is the purpose of the channel select option on the client card then? thanks
  6. vincentfox

    vincentfox Network Guru Member

    I think the channel setting on client side is mainly there for AdHoc usage.

    In Infrastructure mode, the AP is the master and the clients adapt to it. Your client radio starts up looking for a particular SSID and scans available channels to find the strongest signal with that SSID, then associates with that.

    So with a single AP, any clients associated to it are using what channel the AP dictates. In most situations this is not a huge issue as the standard collision detection means that they see traffic in progress and hold off transmitting. It is a shared medium so more clients actively transmitting means less capacity for each individual one.

    There is the hidden-node problem which arises when 2 clients are for example on opposite sides of the AP at significant range, they cannot see that another peer is transmitting. So they blindly transmit and then when they don't get an ACK, timeout and try again. A setup with many hidden-node issues will have significantly worse performance. Most AP's are setup to cover small office areas though and all clients can see each other.

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