A Discrete-Event Network Simulator
API
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wifi-protection-manager.cc
Go to the documentation of this file.
1/*
2 * Copyright (c) 2020 Universita' degli Studi di Napoli Federico II
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation;
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 *
17 * Author: Stefano Avallone <stavallo@unina.it>
18 */
19
21
22#include "ap-wifi-mac.h"
23#include "wifi-phy.h"
24
25#include "ns3/log.h"
26
27namespace ns3
28{
29
30NS_LOG_COMPONENT_DEFINE("WifiProtectionManager");
31
32NS_OBJECT_ENSURE_REGISTERED(WifiProtectionManager);
33
34TypeId
36{
37 static TypeId tid =
38 TypeId("ns3::WifiProtectionManager").SetParent<Object>().SetGroupName("Wifi");
39 return tid;
40}
41
43 : m_linkId(0)
44{
45 NS_LOG_FUNCTION(this);
46}
47
49{
51}
52
53void
55{
56 NS_LOG_FUNCTION(this);
57 m_mac = nullptr;
59}
60
61void
63{
64 NS_LOG_FUNCTION(this << mac);
65 m_mac = mac;
66}
67
70{
72}
73
74void
76{
77 NS_LOG_FUNCTION(this << +linkId);
78 m_linkId = linkId;
79}
80
81void
83 uint16_t txWidth,
84 const Mac48Address& receiver) const
85{
86 NS_LOG_FUNCTION(this << muRts << txWidth << receiver);
87
89
90 NS_ABORT_MSG_IF(m_mac->GetTypeOfStation() != AP, "HE APs only can send MU-RTS");
91 auto apMac = StaticCast<ApWifiMac>(m_mac);
92 ui.SetAid12(apMac->GetAssociationId(receiver, m_linkId));
93
94 const uint16_t ctsTxWidth =
95 std::min(txWidth, GetWifiRemoteStationManager()->GetChannelWidthSupported(receiver));
96 auto phy = m_mac->GetWifiPhy(m_linkId);
97 std::size_t primaryIdx = phy->GetOperatingChannel().GetPrimaryChannelIndex(ctsTxWidth);
98 if (phy->GetChannelWidth() == 160 && ctsTxWidth <= 40 && primaryIdx >= 80 / ctsTxWidth)
99 {
100 // the primary80 is in the higher part of the 160 MHz channel
101 primaryIdx -= 80 / ctsTxWidth;
102 }
103 switch (ctsTxWidth)
104 {
105 case 20:
106 ui.SetMuRtsRuAllocation(61 + primaryIdx);
107 break;
108 case 40:
109 ui.SetMuRtsRuAllocation(65 + primaryIdx);
110 break;
111 case 80:
113 break;
114 case 160:
116 break;
117 default:
118 NS_ABORT_MSG("Unhandled TX width: " << ctsTxWidth << " MHz");
119 }
120}
121
122} // namespace ns3
Headers for Trigger frames.
Definition: ctrl-headers.h:942
CtrlTriggerUserInfoField & AddUserInfoField()
Append a new User Info field to this Trigger frame and return a non-const reference to it.
User Info field of Trigger frames.
Definition: ctrl-headers.h:590
void SetMuRtsRuAllocation(uint8_t value)
Set the RU Allocation subfield based on the given value for the B7-B1 bits.
void SetAid12(uint16_t aid)
Set the AID12 subfield, which carries the 12 LSBs of the AID of the station for which this User Info ...
an EUI-48 address
Definition: mac48-address.h:46
A base class which provides memory management and object aggregation.
Definition: object.h:89
virtual void DoDispose()
Destructor implementation.
Definition: object.cc:444
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:77
a unique identifier for an interface.
Definition: type-id.h:59
TypeId SetParent(TypeId tid)
Set the parent TypeId.
Definition: type-id.cc:932
TypeOfStation GetTypeOfStation() const
Return the type of station.
Definition: wifi-mac.cc:422
Ptr< WifiPhy > GetWifiPhy(uint8_t linkId=SINGLE_LINK_OP_ID) const
Definition: wifi-mac.cc:1171
Ptr< WifiRemoteStationManager > GetWifiRemoteStationManager(uint8_t linkId=0) const
Definition: wifi-mac.cc:906
void DoDispose() override
Destructor implementation.
Ptr< WifiMac > m_mac
MAC which is using this Protection Manager.
void AddUserInfoToMuRts(CtrlTriggerHeader &muRts, uint16_t txWidth, const Mac48Address &receiver) const
Add a User Info field to the given MU-RTS Trigger Frame to solicit a CTS from the station with the gi...
Ptr< WifiRemoteStationManager > GetWifiRemoteStationManager() const
uint8_t m_linkId
ID of the link this Protection Manager is operating on.
void SetLinkId(uint8_t linkId)
Set the ID of the link this Protection Manager is associated with.
void SetWifiMac(Ptr< WifiMac > mac)
Set the MAC which is using this Protection Manager.
static TypeId GetTypeId()
Get the type ID.
#define NS_ABORT_MSG(msg)
Unconditional abnormal program termination with a message.
Definition: abort.h:49
#define NS_ABORT_MSG_IF(cond, msg)
Abnormal program termination if a condition is true, with a message.
Definition: abort.h:108
#define NS_LOG_COMPONENT_DEFINE(name)
Define a Log component with a specific name.
Definition: log.h:202
#define NS_LOG_FUNCTION_NOARGS()
Output the name of the function.
#define NS_LOG_FUNCTION(parameters)
If log level LOG_FUNCTION is enabled, this macro will output all input parameters separated by ",...
#define NS_OBJECT_ENSURE_REGISTERED(type)
Register an Object subclass with the TypeId system.
Definition: object-base.h:46
@ AP
Definition: wifi-mac.h:66
Every class exported by the ns3 library is enclosed in the ns3 namespace.