RTS/CTS not working with ideal Radio Medium
Ibk Akinyemi
I am trying to simulate the IEEE 802.11e network with RTS/CTS mode of transmission in Ideal physical Medium. The RTS/CTS did not work. I get the error - Simulation terminated with exit code: 139
When I change to Basic mode, it works well. Please I need urgent help.
The NED and INI files are as follows:
NED file
import inet.node.wireless.AccessPoint;
import inet.node.inet.INetworkNode;
import inet.networklayer.configurator.ipv4.IPv4NetworkConfigurator;
import inet.physicallayer.idealradio.IdealRadioMedium;
import inet.visualizer.integrated.IntegratedCanvasVisualizer;
import inet.physicallayer.ieee80211.packetlevel.Ieee80211RadioMedium;
@license(LGPL);
//
// TODO documentation
//
network Network
{
parameters:
string nodeType = default("edcaWirelessHost");
@display("bgb=605,300");
submodules:
node0: <nodeType> like INetworkNode {
@display("p=416,45");
}
node1: <nodeType> like INetworkNode {
@display("p=194,36");
}
node2: <nodeType> like INetworkNode {
@display("p=516,122");
}
host: <nodeType> like INetworkNode {
@display("p=315,265");
}
ap: AccessPoint {
@display("p=307,123;r=350");
}
ipv4networkconfigurator: IPv4NetworkConfigurator {
parameters:
@display("p=100,169");
config = xml("<config><interface node='*' address='145.236.x.x' netmask='255.255.0.0'/></config>");
}
radioMedium: Ieee80211RadioMedium {
parameters:
@display("p=184,239");
}
visualizer: IntegratedCanvasVisualizer {
parameters:
@display("p=100,50");
}
}
INI file
[General]
network = ac_one.simulations.Network
record-eventlog = true
tkenv-plugin-path = ../../../etc/plugins
cmdenv-express-mode = false
debug-on-errors = true
sim-time-limit = 6s
**.networkLayer.configurator.networkConfiguratorModule = "ipv4networkconfigurator"
**.channel.throughput.result-recording-modes = all
**.networkLayer.arpType = "GlobalARP"
**.networkLayerType = "IPv4NetworkLayer"
#**.constraintAreaMinX = 0m
#**.constraintAreaMinY = 0m
#**.constraintAreaMinZ = 0m
#**.constraintAreaMaxX = 600m
#**.constraintAreaMaxY = 400m
#**.constraintAreaMaxZ = 0m
**.mac.rtsThresholdBytes = 30B
*.radioMedium.analogModelType ="IdealAnalogModel"
**.wlan[*].radioType = "Ieee80211IdealRadio"
# AP
**.ap.wlan[*].radio.transmitter.communicationRange = 500m
**.ap.wlan[*].mac.address = "10:00:00:00:00:00"
**.ap.wlan[*].macType = "Ieee80211CompatibleMac"
*.ap.relayUnitType = "MACRelayUnit"
*.ap.macTableType ="MACAddressTable"
# host node/Sink
**.host.numUdpApps = 2
**.host.udpApp[*].typename = "UDPSink"
**.host.udpType = "UDP"
**.host.udpApp[0].localPort = 21
**.host.udpApp[1].localPort = 4000
**.host.udpApp[*].startTime = 0s
**.host.udpApp[*].stopTime = 5.9s
**.host.wlan[*].mac.address = "20:00:00:00:00:00"
# node
**.node*.udpApp[*].typename = "UDPBasicApp"
**.node*.udpApp[*].destAddresses = "host"
**.udpApp[*].messageLength = 1000B
**.udpApp[*].sendInterval = 0.00005s
**.udpApp[*].stopTime = 5.5s
#Nic
**.wlan[*].mac.controlBitrate = 6Mbps
**.wlan[*].bitrate = 54Mbps
**.wlan[*].opMode = "a"
**.wlan[*].mac.slotTime = 0.000009s
**.wlan[*].mac.upperMac.sifsTime = 0.000016s
**.wlan[*].mac.upperMac.cwMin0 = 31 #5
**.wlan[*].mac.upperMac.cwMin1 = 31 #5
**.wlan[*].mac.upperMac.cwMin2 = 15 #100
**.wlan[*].mac.upperMac.cwMin3 = 7 #60
**.wlan[*].mac.upperMac.cwMax0 = 1023 #5
**.wlan[*].mac.upperMac.cwMax1 = 1023 #5
**.wlan[*].mac.upperMac.cwMax2 = 31 #100
**.wlan[*].mac.upperMac.cwMax3 = 15 #60
**.wlan[*].mac.upperMac.useFullAckTimeout = true
**.wlan[*].classifierType = "ExampleQoSClassifier"
**.wlan[*].mgmt.accessPointAddress = "10:00:00:00:00:00"
**.wlan[*].radio.bandName = "5 GHz"
**.wlan[*].radio.transmitter.communicationRange = 500m
**.wlan[*].radio.displayCommunicationRange = true
**.wlan[*].radio.receiver.ignoreInterference = true
**.wlan[*].radio.transmitter.headerBitLength = 120b
**.mac.maxQueueSize = 14
**.mac.retryLimit = 7
**.node0.numUdpApps = 2
**.node0.udpApp[0].startTime = 0.598s
**.node0.udpApp[0].destPort = 21
**.node0.udpApp[0].packetName = "Node0 FTP"
**.node0.udpApp[1].startTime = 0.605s
**.node0.udpApp[1].destPort = 4000
**.node0.udpApp[1].packetName = "Node0 Video"
**.node0.wlan[0].mac.address = "30:00:00:00:00:00"
**.node1.numUdpApps = 2
**.node1.udpApp[0].startTime = 0.5985s
**.node1.udpApp[0].destPort = 21
**.node1.udpApp[0].packetName = "Node1 FTP"
**.node1.udpApp[1].startTime = 0.6005s
**.node1.udpApp[1].destPort = 4000
**.node1.udpApp[1].packetName = "Node1 Video"
**.node1.wlan[0].mac.address = "40:00:00:00:00:00"
**.node2.numUdpApps = 2
**.node2.udpApp[0].startTime = 0.601s
**.node2.udpApp[0].destPort = 21
**.node2.udpApp[0].packetName = "Node2 FTP"
**.node2.udpApp[1].startTime = 0.6006s
**.node2.udpApp[1].destPort = 4000
**.node2.udpApp[1].packetName = "Node2 Video"
**.node2.wlan[0].mac.address = "50:00:00:00:00:00"
*.visualizer.mediumVisualizer.displaySignals = true
**.visualizer.physicalLinkVisualizer.packetNameFilter = "Video Packet"
**.visualizer.networkRouteVisualizer.packetNameFilter = "Video Packet"
*.radioMedium.recordCommunicationLog = true
**.wlan[*].radio.transmitter.interferenceRange = 0m
Please I really need help urgently
Thank you
Alfonso Ariza Quintana
It was an error in the CTS/RTS mechanism, depending of the version it is possible that you don’t have the patch installed
Check this, it has information about the patch
https://github.com/inet-framework/inet/commit/2c051a8c7c96afd8932e97a4727902930e1b3698
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Ibk Akinyemi
Help is really needed and appreciated
Ibk Akinyemi
Please, how do I install this patch?
Alfonso Ariza Quintana
Sorry but I don’t understand, you are working in infrastructure mode but you want that the nodes could communicate directly. With 802.11 it is impossible, if you are working in infrastructure mode the nodes must communicate via AP.
If the Node1 wants communicate with node2 The sequence with RTS/CTS is
Node1 sends Rts to AP
AP sends CTS to Node1
Node1 sends data to Ap
Ap sends RTS to Node2
Node2 sends CTS to AP
Ap sends data to Node2
De: omn...@googlegroups.com [mailto:omn...@googlegroups.com] En nombre de Ibk Akinyemi
Enviado el: miércoles, 21 de septiembre de 2016 17:28
Para: OMNeT++ Users <omn...@googlegroups.com>
--
Ibk Akinyemi
Thanks for your response.
I understand the sequence. The AP was not sending the CTS so I thought maybe it was because receiver was AP MAC address and destination IP was for destination node.
Problem now is how do i install the Patch? Do i just install the latest INET 3.4.0?
Ibk Akinyemi
I have the INET 3.4.0 and Omnet - 5.0 installed which i believe are the latest versions, still the access point is not sending the CTS message. Please, how can I get this to work. This is really urgent for me
Ibk Akinyemi
The CTS works radio and radio medium is set to ScalarAnalogModel but not IdealAnalogModel.
Ibk Akinyemi
The CTS works when radio and radio medium are both set to ScalarAnalogModel.
I need to do my simulation with an Ideal wireless medium so I set wlan radio to Ieee80211IdealRadio and radio medium to use IdealAnalogModel, with this, CTS is not sent.
Alfonso Ariza Quintana
CTS/RTS is independent of the radio medium, is a characteristic of the Mac layer, you can enable/disable with independent of the medium.
De: omn...@googlegroups.com [mailto:omn...@googlegroups.com]
En nombre de Ibk Akinyemi
Enviado el: jueves, 22 de septiembre de 2016 10:10
Para: OMNeT++ Users <omn...@googlegroups.com>
Asunto: [Omnetpp-l] Re: RTS/CTS not working with ideal Radio Medium
The CTS works when radio and radio medium are both set to ScalarAnalogModel.
I need to do my simulation with an Ideal wireless medium so I set wlan radio to Ieee80211IdealRadio and radio medium to use IdealAnalogModel, with this, CTS is not sent.
please what am I doing wrong?
--
Alfonso Ariza Quintana
You can download the latest version directly from gihub
De: omn...@googlegroups.com [mailto:omn...@googlegroups.com]
En nombre de Ibk Akinyemi
Enviado el: jueves, 22 de septiembre de 2016 7:44
Para: OMNeT++ Users <omn...@googlegroups.com>
Asunto: [Omnetpp-l] Re: RTS/CTS not working with ideal Radio Medium
Hello Alfonso
I have the INET 3.4.0 and Omnet - 5.0 installed which i believe are the latest versions, still the access point is not sending the CTS message. Please, how can I get this to work. This is really urgent for me
--
Ibk Akinyemi
I looked more closely and realised i have the problem when the AP radioType is set to IEEE80211IdealRadio. When AP radioType is just IdealRadio, CTS works but not sure if using AP with just IdealRadio is correct since i am simulating IEEE802.11 network