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why does linux resend packet and change headers RAW sockets unix
I have this code down below I use to send raw socket on unix with sendto function. it works fine. If the packet is 802.11 frame, as I send the packet it gets resent by the OS with some modifications.
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0
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114
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wireless channel setting in C programming Unix
I have an adapter that I set to monitor mode and I capture packets with wireshark, and send packets with sendto() of unix.
My custom sendto() packet doesn't show its channel, yet all other beacons/...
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1
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309
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Could a frame have different vendor specific fields?
I was analyzing a database of probe requests until I found the following packet which has 3 different vendor specific fields. How to interpret that ?
RadioTap version=0 pad=0 len=24 present=Flags+...
-1
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1
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80
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Why is the maximum data rate of 802.11p lower than 802.11a although 802.11p has a higher frequency band?
In Vehicle to vehicle communication, high speeds of nodes require low latency. (Latency is
the time interval between sending messages by a sender node and receiving
message by a receiver node.) It ...
2
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0
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279
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Increasing the vehicle communication range by increasing its transmission power in Artery with Veins
I am currently working on evaluating the effects of communication load on generation of Cooperative Awareness Messages. For this, I am using Artery with veins for simulating the 802.11p stack. From my ...
2
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95
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My wireless interface seems to buffer incoming messages and receive them periodically
i've got a problem with my wireless network interface.
It seems to work fine if i try to send packets, the troubles start when i have to receive something. It's like it bufferizes incoming packets and ...
3
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1
answer
1k
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Decrypting ZigBee paquets
I would like to decrypt Zigbee paquets from a Xiaomi Aqara switch. Here is the raw encrypted frame I sniffed on a network:
Raw encrypted frame
61 88 64 47 24 00 00 8A 5C 48 02 00 00 8A 5C 1E 5D 28 E1 ...
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1
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383
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Extract the information regarding rts, cts and ack from xml file generated with flow monitor in ns3
While doing network simulation using ns-3 for IEEE802.11, there is a pcap file generated. I am able to filter all the information regarding rts, cts and ack from that pcap file using WireShark. But I ...
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1
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82
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Is there a max number of unicast messages in 802.11p?
How many vehicles could send a unicast message to a road side unit at the same time? Is there a limit?
Thank you
0
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1
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207
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Artery (VEINS extension) - LTE and IEEE 802.11p combined
I'm new to Artery, although I have some experience with VEINS.
I've been able to run simulations where all nodes have IEEE 802.11p interfaces, or all nodes have LTE interfaces.
However, I'm having ...
0
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0
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202
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"numCollision" statistics in INET framework
I am currently working on an 802.11p simulator, which makes use of the OMNeT++ and INET simulation frameworks.
I would just like to ask if there's a built-in function to get the "number of collisions"...
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162
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use 802.11p in my protocol in ns2.35
When I use from 802.11p In the protocol I have designed, I encounter a problem that it is sent this beacon protocol but no beacon is received,
but when using 802.11 this routine is executed correctly,...
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0
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262
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Ns2 802.11p simulation parameters of propagation model
Im using this tcl of 802.11p, provided by Knud Larsen
https://drive.google.com/open?id=1Qxe_ydqwm-CXOQz8CM2Z1QJ2owMvNiw7
What I want to know is how can I calculate the coverage radius of each node ...
1
vote
1
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155
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Probability of successful reception in VEINS
I am doing research around evaluation routing protocols in Veins 4.4 and was wondering how can I find the probability of successful reception in VEINS without major modifications to the code to trace ...
0
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0
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684
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How can I add a Road Side Unit into a NS-2 and Sumo Simulation
I have an 802.11p NS-2 simulation with some nodes that use SUMO trajectories, Right now I'm testing the V2V (vehicle to vehicle) communication measuring the throughout with DSDV and AODV routing ...