Benoit latré isbo ng wi nets - avoiding interference

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Benoit latré isbo ng wi nets - avoiding interference

  1. 1. NGWiNet - 1st Workshop 1 st year demo IBCN Lieven Tytgat, Benoît Latré, Ingrid Moerman www.ibcn.intec.ugent.be INTEC Broadband Communication Networks (IBCN) Department of Information Technology (INTEC) Ghent University - IBBT
  2. 2. Avoiding interference   Goal: Node selects channel with least interference for receiving data   How:   Node scans the channels   Node chooses the best channel (channel X)   Node broadcasts this channel to its neighbors   Neighbors send to the node on channel X 2
  3. 3. Avoiding interference   Channel scanning: demo 3
  4. 4. Avoiding interference   Microwave results 4
  5. 5.   Access point turned on on blue channel (overlap on red channel) 5
  6. 6. Avoiding interference 6 6
  7. 7. Avoiding interference   Demo:   Bring access point online   Node stays on same channel 7
  8. 8. Avoiding interference 8 8
  9. 9. Avoiding interference   Demo:   Bring access point online   Node selects new channel 9
  10. 10. Avoiding interference   Conclusions   Dynamically choosing a new channel improves PER   Faster and more reliable channel scanning needed!  Use IMEC’s sensing agent 10
  11. 11. Questions ? Lieven Tytgat, Benoît Latré, Ingrid Moerman www.ibcn.intec.ugent.be INTEC Broadband Communication Networks (IBCN) Department of Information Technology (INTEC) Ghent University - IBBT

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