glue::mac::Backoff Class Reference

802.11 DCF style backoff

#include <mac/Backoff.hpp>

Inheritance diagram for glue::mac::Backoff:

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Collaboration diagram for glue::mac::Backoff:

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List of all members.

Public Member Functions
	Backoff (BackoffObserver *backoffObserver, wns::simulator::Time sifsLength, wns::simulator::Time slotLength, wns::simulator::Time ackLength, const wns::logger::Logger &_logger)
virtual bool	isCarrierIdle () const
virtual void	onCarrierBusy ()
	called from PHY implementation if carrier is busy after it has been idle
virtual void	onCarrierIdle ()
	called from PHY implementation if carrier is idle after it has been busy
virtual void	onCollision ()
	called from PHY implementation if collision happened
virtual void	timerExpired ()
virtual void	transmissionRequest (bool isRetransmission=false)
virtual	~Backoff ()
Protected Attributes
int	counter
Private Types
enum	CarrierSensingResult { carrierIdle, carrierBusy, carrierError }
typedef wns::events::MemberFunction < Backoff >	LocalSignal
enum	State {   idle, inSIFS, inSlotCountdown, finished,   waitingForCarrierIdle }
enum	tTransmissionState { none, pending, transmitting }
Private Member Functions
void	startNewBackoffCountdown (wns::simulator::Time ifsLength)
void	waitForTimer (wns::simulator::Time &waitLength)
Private Attributes
wns::simulator::Time	ackLength
BackoffObserver *	backoffObserver
CarrierSensingResult	carrierSenseResult
wns::events::scheduler::IEventPtr	currentSignal
int	cw
int	cwMax
int	cwMin
wns::simulator::Time	difsLength
wns::simulator::Time	eifsLength
wns::logger::Logger	logger
wns::simulator::Time	sifsLength
wns::simulator::Time	slotLength
State	state
tTransmissionState	transmissionState
wns::distribution::Uniform	uniform

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Detailed Description

Definition at line 46 of file Backoff.hpp.

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Member Typedef Documentation

typedef wns::events::MemberFunction<Backoff> glue::mac::Backoff::LocalSignal [private]

Definition at line 49 of file Backoff.hpp.

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Member Enumeration Documentation

enum glue::mac::Backoff::CarrierSensingResult [private]

Enumerator:

carrierIdle
carrierBusy
carrierError

Definition at line 87 of file Backoff.hpp.

enum glue::mac::Backoff::State [private]

Enumerator:

idle
inSIFS
inSlotCountdown
finished
waitingForCarrierIdle

Definition at line 79 of file Backoff.hpp.

enum glue::mac::Backoff::tTransmissionState [private]

Enumerator:

none
pending
transmitting

Definition at line 93 of file Backoff.hpp.

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Constructor & Destructor Documentation

Backoff::Backoff	(	BackoffObserver *	backoffObserver,
		wns::simulator::Time	sifsLength,
		wns::simulator::Time	slotLength,
		wns::simulator::Time	ackLength,
		const wns::logger::Logger &	_logger
	)			[explicit]

Definition at line 22 of file Backoff.cpp.

Backoff::~Backoff

(

)

[virtual]

Definition at line 56 of file Backoff.cpp.

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Member Function Documentation

bool Backoff::isCarrierIdle

(

)

const [virtual]

Definition at line 241 of file Backoff.cpp.

void Backoff::onCarrierBusy

(

)

[virtual]

Implements wns::service::phy::copper::CarrierSensing.

Definition at line 204 of file Backoff.cpp.

void Backoff::onCarrierIdle

(

)

[virtual]

Implements wns::service::phy::copper::CarrierSensing.

Definition at line 167 of file Backoff.cpp.

void Backoff::onCollision

(

)

[virtual]

Implements wns::service::phy::copper::CarrierSensing.

Definition at line 223 of file Backoff.cpp.

void Backoff::startNewBackoffCountdown

(

wns::simulator::Time

ifsLength

)

[private]

Definition at line 61 of file Backoff.cpp.

void Backoff::timerExpired

(

)

[virtual]

Definition at line 86 of file Backoff.cpp.

void Backoff::transmissionRequest

(

bool

isRetransmission = false

)

[virtual]

Definition at line 120 of file Backoff.cpp.

void Backoff::waitForTimer

(

wns::simulator::Time &

waitLength

)

[private]

Definition at line 76 of file Backoff.cpp.

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Member Data Documentation

wns::simulator::Time glue::mac::Backoff::ackLength [private]

Definition at line 103 of file Backoff.hpp.

BackoffObserver* glue::mac::Backoff::backoffObserver [private]

Definition at line 99 of file Backoff.hpp.

CarrierSensingResult glue::mac::Backoff::carrierSenseResult [private]

Definition at line 116 of file Backoff.hpp.

int glue::mac::Backoff::counter [protected]

Definition at line 121 of file Backoff.hpp.

wns::events::scheduler::IEventPtr glue::mac::Backoff::currentSignal [private]

Definition at line 114 of file Backoff.hpp.

int glue::mac::Backoff::cw [private]

Definition at line 112 of file Backoff.hpp.

int glue::mac::Backoff::cwMax [private]

Definition at line 111 of file Backoff.hpp.

int glue::mac::Backoff::cwMin [private]

Definition at line 110 of file Backoff.hpp.

wns::simulator::Time glue::mac::Backoff::difsLength [private]

Definition at line 104 of file Backoff.hpp.

wns::simulator::Time glue::mac::Backoff::eifsLength [private]

Definition at line 105 of file Backoff.hpp.

wns::logger::Logger glue::mac::Backoff::logger [private]

Definition at line 115 of file Backoff.hpp.

wns::simulator::Time glue::mac::Backoff::sifsLength [private]

Definition at line 101 of file Backoff.hpp.

wns::simulator::Time glue::mac::Backoff::slotLength [private]

Definition at line 102 of file Backoff.hpp.

State glue::mac::Backoff::state [private]

Definition at line 107 of file Backoff.hpp.

tTransmissionState glue::mac::Backoff::transmissionState [private]

Definition at line 108 of file Backoff.hpp.

wns::distribution::Uniform glue::mac::Backoff::uniform [private]

Definition at line 113 of file Backoff.hpp.

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

• modules/dll/glue/src/mac/Backoff.hpp
• modules/dll/glue/src/mac/Backoff.cpp