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. 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
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3. Avoiding interference
 Channel scanning: demo
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4. Avoiding interference
 Microwave results
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5.  Access point turned on on blue channel (overlap on red
channel)
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6. Avoiding interference
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7. Avoiding interference
 Demo:
 Bring access point online
 Node stays on same channel
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8. Avoiding interference
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9. Avoiding interference
 Demo:
 Bring access point online
 Node selects new channel
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10. Avoiding interference
 Conclusions
 Dynamically choosing a new channel improves PER
 Faster and more reliable channel scanning needed!
 Use IMEC’s sensing agent
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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