Anders,
When using the 802.11 radio model, the physical layer 'noisemode' parameter can
only be set to 'none' or 'outofband'. The 802.11 radio model uses a channel
utilization and neighbor estimator statistical model for in-band interference.
If you checked your logs you should have seen the following message when
'noisemode' was set to 'all' for each received packet:
23:06:47.679146 ERROR MACI 001 IEEEMACLayer upstream EOR processing: spectrum
service reporting signal in noise. This is an unallowable noise mode. Valid PHY
noise modes are: none and outofband.
You can also check the BroadcastPacketDropTable0 and UnicastPacketDropTable0 to
see why your packets are not completing. In this case, the 'Bad Control' column
will
increment for each received packet indicating there is an internal control
message issue - the physical layer is configured incorrectly.
emanesh (node-1:47000)] ## get table 1 mac BroadcastPacketDropTable0
nem 1 mac BroadcastPacketDropTable0
| NEM | SINR | Reg Id | Dst MAC | Queue Overflow | Bad Control | Bad Spectrum
Query | Flow Control | Duplicate | Rx During Tx | Hidden Busy |
| 2 | 0 | 0 | 0 | 0 | 130 | 0
| 0 | 0 | 0 | 0 |
| 3 | 0 | 0 | 0 | 0 | 129 | 0
| 0 | 0 | 0 | 0 |
| 4 | 0 | 0 | 0 | 0 | 129 | 0
| 0 | 0 | 0 | 0 |
| 5 | 0 | 0 | 0 | 0 | 131 | 0
| 0 | 0 | 0 | 0 |
| 6 | 0 | 0 | 0 | 0 | 130 | 0
| 0 | 0 | 0 | 0 |
| 7 | 0 | 0 | 0 | 0 | 68 | 0
| 0 | 0 | 0 | 0 |
| 8 | 0 | 0 | 0 | 0 | 71 | 0
| 0 | 0 | 0 | 0 |
| 9 | 0 | 0 | 0 | 0 | 71 | 0
| 0 | 0 | 0 | 0 |
| 10 | 0 | 0 | 0 | 0 | 73 | 0
| 0 | 0 | 0 | 0 |
If you want to use an 802.11 network to jam another 802.11 network and both
networks are set to the same center frequency you will need to set different
physical layer subids. Otherwise you only have one network from a MAC
perspective and are just increasing the channel utilization and contention of
that network.
https://github.com/adjacentlink/emane/wiki/Physical-Layer-Model#subid
--
Steven Galgano
Adjacent Link LLC
www.adjacentlink.com
On 05/07/2014 07:30 PM, Anders Nilsson Plymoth wrote:
> Hi,
>
> How do I emulate in band interference using the IEEE 802.11abg model?
>
> If I have RF Pipe inteference nodes on the same frequency etc using
> outofband noisemode I get the expected results and lowered SINR.
>
> However, when I switch to ieee802abg for the interference nodes, and using
> noisemode *all*, I receive *nothing*. If I change to noisemode *none, *I
> receive everything. This is very unrealistic, and if I understand the PHY
> documention correctly I should be able to use in band interference.
>
> Thanks,
> Anders
>
>
>
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> [email protected]
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>
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