Test for Block Ack Policy with aggregation disabled. More...

Inheritance diagram for BlockAckAggregationDisabledTest:

Collaboration diagram for BlockAckAggregationDisabledTest:

Classes
struct	TxopDurationTracer
	Keeps the maximum duration among all TXOPs. More...

Public Member Functions
	BlockAckAggregationDisabledTest (bool txop)
	Constructor.

	~BlockAckAggregationDisabledTest () override

void	DoRun () override
	Implementation to actually run this TestCase.

Public Member Functions inherited from ns3::TestCase
	TestCase (const TestCase &)=delete

virtual	~TestCase ()
	Destructor.

std::string	GetName () const

TestCase &	operator= (const TestCase &)=delete

Private Member Functions
void	L7Receive (std::string context, Ptr< const Packet > p, const Address &adr)
	Function to trace packets received by the server application.

void	Receive (std::string context, Ptr< const Packet > p, RxPowerWattPerChannelBand rxPowersW)
	Callback invoked when PHY receives a packet.

void	Transmit (std::string context, Ptr< const Packet > p, double power)
	Callback invoked when PHY transmits a packet.

Private Attributes
uint16_t	m_nBa
	received BlockAck frames

uint16_t	m_nBar
	transmitted BlockAckReq frames

uint32_t	m_received
	received packets

bool	m_txop
	true for non-null TXOP limit

uint16_t	m_txSinceBar
	packets transmitted since the agreement was established or the last block ack was received

uint16_t	m_txTotal
	transmitted data packets

Additional Inherited Members
Public Types inherited from ns3::TestCase
enum class	Duration { QUICK = 1 , EXTENSIVE = 2 , TAKES_FOREVER = 3 }
	How long the test takes to execute. More...

Static Public Attributes inherited from ns3::TestCase
static constexpr auto	QUICK = Duration::QUICK
	Deprecated test duration simple enums.

static constexpr auto	EXTENSIVE = Duration::EXTENSIVE

static constexpr auto	TAKES_FOREVER = Duration::TAKES_FOREVER

Protected Member Functions inherited from ns3::TestCase
	TestCase (std::string name)
	Constructor.

void	AddTestCase (TestCase *testCase, Duration duration=Duration::QUICK)
	Add an individual child TestCase to this test suite.

TestCase *	GetParent () const
	Get the parent of this TestCase.

bool	IsStatusFailure () const
	Check if any tests failed.

bool	IsStatusSuccess () const
	Check if all tests passed.

void	SetDataDir (std::string directory)
	Set the data directory where reference trace files can be found.

void	ReportTestFailure (std::string cond, std::string actual, std::string limit, std::string message, std::string file, int32_t line)
	Log the failure of this TestCase.

bool	MustAssertOnFailure () const
	Check if this run should assert on failure.

bool	MustContinueOnFailure () const
	Check if this run should continue on failure.

std::string	CreateDataDirFilename (std::string filename)
	Construct the full path to a file in the data directory.

std::string	CreateTempDirFilename (std::string filename)
	Construct the full path to a file in a temporary directory.

Detailed Description

Test for Block Ack Policy with aggregation disabled.

This test aims to check the Block Ack policy when A-MPDU aggregation is disabled. In this case, a QoS station can transmit multiple QoS data frames before requesting a Block Ack through a Block Ack Request frame. If the AC is granted a non-null TXOP limit, MPDUs can be separated by a SIFS.

In this test, an HT STA sends 14 packets to an HT AP. The ack policy selector is configured so that a Block Ack is requested once 8 (= 0.125 * 64) MPDUs are sent in addition to the MPDU having the starting sequence number. The block ack threshold is set to 2, hence a block ack agreement is established when there are at least two packets in the EDCA queue.

When the TXOP limit is null:

the first packet is sent with Normal Ack policy because the BA agreement has not been established yet (there are no queued packets when the first one arrives);
packets from the 2nd to the 10th are sent with Block Ack policy (and hence are not immediately acknowledged);
after the 10th packet, a Block Ack Request is sent, followed by a Block Ack;
the remaining 4 packets are sent with Block Ack policy (and hence are not immediately acknowledged);
the last packet is followed by a Block Ack Request because there are no more packets in the EDCA queue and hence a response is needed independently of the number of outstanding MPDUs.

When the TXOP is not null (and long enough to include the transmission of all packets):

the first packet is sent with Normal Ack policy because the BA agreement has not been established yet (there are no queued packets when the first one arrives);
the second packet is sent with Normal Ack Policy because the first packet sent in a TXOP shall request an immediate response and no previous MPDUs have to be acknowledged;
packets from the 3rd to the 11th are sent with Block Ack policy (and hence are not immediately acknowledged);
after the 11th packet, a Block Ack Request is sent, followed by a Block Ack;
the remaining 3 packets are sent with Block Ack policy (and hence are not immediately acknowledged);
the last packet is followed by a Block Ack Request because there are no more packets in the EDCA queue and hence a response is needed independently of the number of outstanding MPDUs.

Definition at line 1705 of file block-ack-test-suite.cc.

Constructor & Destructor Documentation

◆ BlockAckAggregationDisabledTest()

BlockAckAggregationDisabledTest::BlockAckAggregationDisabledTest ( bool txop )

Constructor.

Parameters

txop	true for non-null TXOP limit

Definition at line 1775 of file block-ack-test-suite.cc.

◆ ~BlockAckAggregationDisabledTest()

BlockAckAggregationDisabledTest::~BlockAckAggregationDisabledTest ( )

override

Definition at line 1786 of file block-ack-test-suite.cc.

Member Function Documentation

◆ DoRun()

void BlockAckAggregationDisabledTest::DoRun ( )

overridevirtual

Implementation to actually run this TestCase.

Subclasses should override this method to conduct their tests.

Implements ns3::TestCase.

Definition at line 1859 of file block-ack-test-suite.cc.

References ns3::AC_BE, ns3::Node::AddApplication(), ns3::Config::Connect(), ns3::NodeContainer::Create(), ns3::CreateObject(), ns3::YansWifiChannelHelper::Default(), ns3::Simulator::Destroy(), ns3::DynamicCast(), ns3::NodeContainer::Get(), ns3::PointerValue::Get(), ns3::PacketSocketHelper::Install(), L7Receive(), BlockAckAggregationDisabledTest::TxopDurationTracer::m_max, m_nBa, m_nBar, m_received, m_txop, m_txTotal, ns3::MakeCallback(), ns3::MicroSeconds(), NS_TEST_EXPECT_MSG_EQ, NS_TEST_EXPECT_MSG_GT, NS_TEST_EXPECT_MSG_LT, Receive(), ns3::Simulator::Run(), ns3::Seconds(), ns3::Config::SetDefault(), ns3::PacketSocketAddress::SetPhysicalAddress(), ns3::PacketSocketAddress::SetProtocol(), ns3::PacketSocketAddress::SetSingleDevice(), ns3::Simulator::Stop(), BlockAckAggregationDisabledTest::TxopDurationTracer::Trace(), Transmit(), and ns3::WIFI_STANDARD_80211n.

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◆ L7Receive()

void BlockAckAggregationDisabledTest::L7Receive	(	std::string	context,
		Ptr< const Packet >	p,
		const Address &	adr )

private

Function to trace packets received by the server application.

Parameters

context	the context
p	the packet
adr	the address

Definition at line 1791 of file block-ack-test-suite.cc.

References m_received.

Referenced by DoRun().

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◆ Receive()

void BlockAckAggregationDisabledTest::Receive	(	std::string	context,
		Ptr< const Packet >	p,
		RxPowerWattPerChannelBand	rxPowersW )

private

Callback invoked when PHY receives a packet.

Parameters

context	the context
p	the packet
rxPowersW	the received power per channel band in watts

Definition at line 1845 of file block-ack-test-suite.cc.

References ns3::WifiMacHeader::IsBlockAck(), and m_nBa.

Referenced by DoRun().

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◆ Transmit()

void BlockAckAggregationDisabledTest::Transmit	(	std::string	context,
		Ptr< const Packet >	p,
		double	power )

private

Callback invoked when PHY transmits a packet.

Parameters

context	the context
p	the packet
power	the tx power

Definition at line 1802 of file block-ack-test-suite.cc.

References ns3::WifiMacHeader::IsBlockAckReq(), ns3::WifiMacHeader::IsQosBlockAck(), ns3::WifiMacHeader::IsQosData(), m_nBar, m_txop, m_txSinceBar, m_txTotal, NS_TEST_ASSERT_MSG_EQ, and NS_TEST_EXPECT_MSG_EQ.

Referenced by DoRun().

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Member Data Documentation

◆ m_nBa

uint16_t BlockAckAggregationDisabledTest::m_nBa

private

received BlockAck frames

Definition at line 1739 of file block-ack-test-suite.cc.

Referenced by DoRun(), and Receive().

◆ m_nBar

uint16_t BlockAckAggregationDisabledTest::m_nBar

private

transmitted BlockAckReq frames

Definition at line 1738 of file block-ack-test-suite.cc.

Referenced by DoRun(), and Transmit().

◆ m_received

uint32_t BlockAckAggregationDisabledTest::m_received

private

received packets

Definition at line 1734 of file block-ack-test-suite.cc.

Referenced by DoRun(), and L7Receive().

◆ m_txop

bool BlockAckAggregationDisabledTest::m_txop

private

true for non-null TXOP limit

Definition at line 1733 of file block-ack-test-suite.cc.

Referenced by DoRun(), and Transmit().

◆ m_txSinceBar

uint16_t BlockAckAggregationDisabledTest::m_txSinceBar

private

packets transmitted since the agreement was established or the last block ack was received

Definition at line 1736 of file block-ack-test-suite.cc.

Referenced by Transmit().

◆ m_txTotal

uint16_t BlockAckAggregationDisabledTest::m_txTotal

private

transmitted data packets

Definition at line 1735 of file block-ack-test-suite.cc.

Referenced by DoRun(), and Transmit().

The documentation for this class was generated from the following file:

src/wifi/test/block-ack-test-suite.cc

Classes

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ BlockAckAggregationDisabledTest()

◆ ~BlockAckAggregationDisabledTest()

Member Function Documentation

◆ DoRun()

◆ L7Receive()

◆ Receive()

◆ Transmit()

Member Data Documentation

◆ m_nBa

◆ m_nBar

◆ m_received

◆ m_txop

◆ m_txSinceBar

◆ m_txTotal