NGWiNet - 1st Workshop 1st 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

Avoiding interference

 Channel scanning: demo

3

Avoiding interference

 Microwave results

4

 Access point turned on on blue channel (overlap on red channel)

5

6 6

Avoiding interference

Avoiding interference

 Demo:  Bring access point online  Node stays on same channel

7

8 8

Avoiding interference

Avoiding interference

 Demo:  Bring access point online  Node selects new channel

9

Avoiding interference

 Conclusions  Dynamically choosing a new channel improves PER

 Faster and more reliable channel scanning needed!  Use IMEC’s sensing agent

10

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