F5/unison
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

wifi: Add an option to wifi-eht-network to setup a second and a third link between the AP and the station(s)

Browse Source 
Links must operate in distinct frequency bands
This commit is contained in:
Stefano Avallone
2023-01-20 11:59:48 +01:00
parent 73d25d7f0f
commit 2101962980
1 changed files with 86 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

131
examples/wireless/wifi-eht-network.cc
View File

@@ -43,6 +43,7 @@
#include "ns3/yans-wifi-channel.h"
#include "ns3/yans-wifi-helper.h"
#include <array>
#include <functional>
// This is a simple example in order to show how to configure an IEEE 802.11be Wi-Fi network.
@@ -76,7 +77,11 @@ main(int argc, char* argv[])
bool useExtendedBlockAck{false};
double simulationTime{10}; // seconds
double distance{1.0}; // meters
double frequency{5}; // whether 2.4, 5 or 6 GHz
double frequency{5}; // whether the first link operates in the 2.4, 5 or 6 GHz
double frequency2{0}; // whether the second link operates in the 2.4, 5 or 6 GHz (0 means no
// second link exists)
double frequency3{
0}; // whether the third link operates in the 2.4, 5 or 6 GHz (0 means no third link exists)
std::size_t nStations{1};
std::string dlAckSeqType{"NO-OFDMA"};
bool enableUlOfdma{false};
@@ -89,9 +94,20 @@ main(int argc, char* argv[])
Time accessReqInterval{0};
CommandLine cmd(__FILE__);
cmd.AddValue("frequency",
"Whether working in the 2.4, 5 or 6 GHz band (other values gets rejected)",
frequency);
cmd.AddValue(
"frequency",
"Whether the first link operates in the 2.4, 5 or 6 GHz band (other values gets rejected)",
frequency);
cmd.AddValue(
"frequency2",
"Whether the second link operates in the 2.4, 5 or 6 GHz band (0 means the device has one "
"link, otherwise the band must be different than first link and third link)",
frequency2);
cmd.AddValue(
"frequency3",
"Whether the third link operates in the 2.4, 5 or 6 GHz band (0 means the device has up to "
"two links, otherwise the band must be different than first link and second link)",
frequency3);
cmd.AddValue("distance",
"Distance in meters between the station and the access point",
distance);
@@ -175,7 +191,8 @@ main(int argc, char* argv[])
{
uint8_t index = 0;
double previous = 0;
uint8_t maxChannelWidth = frequency == 2.4 ? 40 : 160;
uint16_t maxChannelWidth =
(frequency != 2.4 && frequency2 != 2.4 && frequency3 != 2.4) ? 160 : 40;
for (int channelWidth = 20; channelWidth <= maxChannelWidth;) // MHz
{
for (int gi = 3200; gi >= 800;) // Nanoseconds
@@ -194,50 +211,71 @@ main(int argc, char* argv[])
NetDeviceContainer staDevices;
WifiMacHelper mac;
WifiHelper wifi;
std::string channelStr("{0, " + std::to_string(channelWidth) + ", ");
StringValue ctrlRate;
auto nonHtRefRateMbps = EhtPhy::GetNonHtReferenceRate(mcs) / 1e6;
std::ostringstream ossDataMode;
ossDataMode << "EhtMcs" << mcs;
wifi.SetStandard(WIFI_STANDARD_80211be);
std::array<std::string, 3> channelStr;
uint8_t nLinks = 0;
std::string dataModeStr = "EhtMcs" + std::to_string(mcs);
std::string ctrlRateStr;
uint64_t nonHtRefRateMbps = EhtPhy::GetNonHtReferenceRate(mcs) / 1e6;
if (frequency == 6)
if (frequency2 == frequency || frequency3 == frequency ||
(frequency3 != 0 && frequency3 == frequency2))
{
wifi.SetStandard(WIFI_STANDARD_80211be);
ctrlRate = StringValue(ossDataMode.str());
channelStr += "BAND_6GHZ, 0}";
Config::SetDefault("ns3::LogDistancePropagationLossModel::ReferenceLoss",
DoubleValue(48));
}
else if (frequency == 5)
{
wifi.SetStandard(WIFI_STANDARD_80211be);
std::ostringstream ossControlMode;
ossControlMode << "OfdmRate" << nonHtRefRateMbps << "Mbps";
ctrlRate = StringValue(ossControlMode.str());
channelStr += "BAND_5GHZ, 0}";
}
else if (frequency == 2.4)
{
wifi.SetStandard(WIFI_STANDARD_80211be);
std::ostringstream ossControlMode;
ossControlMode << "ErpOfdmRate" << nonHtRefRateMbps << "Mbps";
ctrlRate = StringValue(ossControlMode.str());
channelStr += "BAND_2_4GHZ, 0}";
Config::SetDefault("ns3::LogDistancePropagationLossModel::ReferenceLoss",
DoubleValue(40));
}
else
{
std::cout << "Wrong frequency value!" << std::endl;
std::cout << "Frequency values must be unique!" << std::endl;
return 0;
}
wifi.SetRemoteStationManager("ns3::ConstantRateWifiManager",
"DataMode",
StringValue(ossDataMode.str()),
"ControlMode",
ctrlRate);
for (auto freq : {frequency, frequency2, frequency3})
{
if (nLinks > 0 && freq == 0)
{
break;
}
channelStr[nLinks] = "{0, " + std::to_string(channelWidth) + ", ";
if (freq == 6)
{
channelStr[nLinks] += "BAND_6GHZ, 0}";
Config::SetDefault("ns3::LogDistancePropagationLossModel::ReferenceLoss",
DoubleValue(48));
wifi.SetRemoteStationManager(nLinks,
"ns3::ConstantRateWifiManager",
"DataMode",
StringValue(dataModeStr),
"ControlMode",
StringValue(dataModeStr));
}
else if (freq == 5)
{
channelStr[nLinks] += "BAND_5GHZ, 0}";
ctrlRateStr = "OfdmRate" + std::to_string(nonHtRefRateMbps) + "Mbps";
wifi.SetRemoteStationManager(nLinks,
"ns3::ConstantRateWifiManager",
"DataMode",
StringValue(dataModeStr),
"ControlMode",
StringValue(ctrlRateStr));
}
else if (freq == 2.4)
{
channelStr[nLinks] += "BAND_2_4GHZ, 0}";
Config::SetDefault("ns3::LogDistancePropagationLossModel::ReferenceLoss",
DoubleValue(40));
ctrlRateStr = "ErpOfdmRate" + std::to_string(nonHtRefRateMbps) + "Mbps";
wifi.SetRemoteStationManager(nLinks,
"ns3::ConstantRateWifiManager",
"DataMode",
StringValue(dataModeStr),
"ControlMode",
StringValue(ctrlRateStr));
}
else
{
std::cout << "Wrong frequency value!" << std::endl;
return 0;
}
nLinks++;
}
Ssid ssid = Ssid("ns3-80211be");
@@ -254,12 +292,15 @@ main(int argc, char* argv[])
CreateObject<LogDistancePropagationLossModel>();
spectrumChannel->AddPropagationLossModel(lossModel);
SpectrumWifiPhyHelper phy;
SpectrumWifiPhyHelper phy(nLinks);
phy.SetPcapDataLinkType(WifiPhyHelper::DLT_IEEE802_11_RADIO);
phy.SetChannel(spectrumChannel);
mac.SetType("ns3::StaWifiMac", "Ssid", SsidValue(ssid));
phy.Set("ChannelSettings", StringValue(channelStr));
for (uint8_t linkId = 0; linkId < nLinks; linkId++)
{
phy.Set(linkId, "ChannelSettings", StringValue(channelStr[linkId]));
}
staDevices = wifi.Install(phy, mac, wifiStaNodes);
if (dlAckSeqType != "NO-OFDMA")