wifimac::draftn::Aggregation Class Reference

Frame aggregation according to IEEE 802.11n Draft 8.0. More...

#include <draftn/Aggregation.hpp>

Inheritance diagram for wifimac::draftn::Aggregation:

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Collaboration diagram for wifimac::draftn::Aggregation:

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List of all members.

Public Member Functions
	Aggregation (wns::ldk::fun::FUN *fun, const wns::pyconfig::View &config)
wns::ldk::CompoundPtr	getSomethingToSend ()
	Prepares the ougoing compound for transmission.
const wns::ldk::CompoundPtr	hasSomethingToSend () const
	Checks if outgoing compounds are pending.
void	onFUNCreated ()
	Resolve inter-FU dependencies.
void	onTimeout ()
	CanTimeout interface realization.
void	processOutgoing (const wns::ldk::CompoundPtr &compound)
	Enhance the wns::ldk::concatenation::Concatenation with an early closing of the aggregation in the case of direct reply request, different receiver or impatient behaviour.
Private Attributes
wns::probe::bus::ContextCollectorPtr	aggregationSizeFrames
wns::service::dll::UnicastAddress	currentReceiver
struct wifimac::draftn::Aggregation::Friends	friends
const bool	impatientTransmission
const std::string	managerName
const wns::simulator::Time	maxDelay
bool	sendNow
Classes
struct	Friends

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Detailed Description

This frame aggregation FU is derived from wns::ldk::concatenation::Concatenation, which is changed in the following manner:

• The aggregation is closes if an outgoing compound requires a direct reply (e.g. a BlockACK request)
• Furthermore, it is closes if the compound is for another receiver Additinally, the aggregation is closed early upon the timeout of a timer (to avoid too long aggregation delays) or if the aggregation FU is set to behave "impatiently".

An additional probe measures the number of frames in one aggregation train.

Definition at line 57 of file Aggregation.hpp.

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Constructor & Destructor Documentation

Aggregation::Aggregation	(	wns::ldk::fun::FUN *	fun,
		const wns::pyconfig::View &	config
	)

Definition at line 48 of file Aggregation.cpp.

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Member Function Documentation

wns::ldk::CompoundPtr Aggregation::getSomethingToSend

(

)

[virtual]

Reimplemented from wns::ldk::concatenation::Concatenation.

Definition at line 182 of file Aggregation.cpp.

const wns::ldk::CompoundPtr Aggregation::hasSomethingToSend

(

)

const [virtual]

Reimplemented from wns::ldk::concatenation::Concatenation.

Definition at line 169 of file Aggregation.cpp.

void Aggregation::onFUNCreated

(

)

[virtual]

Often FunctionalUnits require the collaboration with other FunctionalUnits to accomplish their task. For the collaboration between FunctionalUnits we coined the term "friendship".

The onFUNCreated method is a hook being called after the complete FUN has been set up. FunctionalUnits requiring the collaboration with other FunctionalUnits should resolve these dependencies by implementing this hook accordingly.

Finding friends is usually done calling wns::ldk::fun::FUN::findFriend.

When building reconfigurable FUNs, this method may get called multiple times (e.g., after each FUN reconfiguration). Keep that in mind when allocating resources in your onFUNCreated implementation.

Reimplemented from wns::ldk::FunctionalUnit.

Definition at line 76 of file Aggregation.cpp.

void Aggregation::onTimeout

(

)

[virtual]

Implements wns::events::CanTimeout.

Definition at line 161 of file Aggregation.cpp.

void Aggregation::processOutgoing

(

const wns::ldk::CompoundPtr &

compound

)

[virtual]

Reimplemented from wns::ldk::concatenation::Concatenation.

Definition at line 83 of file Aggregation.cpp.

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Member Data Documentation

wns::probe::bus::ContextCollectorPtr wifimac::draftn::Aggregation::aggregationSizeFrames [private]

Definition at line 93 of file Aggregation.hpp.

wns::service::dll::UnicastAddress wifimac::draftn::Aggregation::currentReceiver [private]

Definition at line 91 of file Aggregation.hpp.

struct wifimac::draftn::Aggregation::Friends wifimac::draftn::Aggregation::friends [private]

const bool wifimac::draftn::Aggregation::impatientTransmission [private]

Definition at line 88 of file Aggregation.hpp.

const std::string wifimac::draftn::Aggregation::managerName [private]

Definition at line 87 of file Aggregation.hpp.

const wns::simulator::Time wifimac::draftn::Aggregation::maxDelay [private]

Definition at line 89 of file Aggregation.hpp.

bool wifimac::draftn::Aggregation::sendNow [private]

Definition at line 90 of file Aggregation.hpp.

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

• modules/dll/wifimac/src/draftn/Aggregation.hpp
• modules/dll/wifimac/src/draftn/Aggregation.cpp