#include <dcc_information_sharing.hpp>

Inheritance diagram for vanetza::geonet::DccInformationSharing:

Public Member Functions
	DccInformationSharing (Runtime &rt, const LocationTable &lt, dcc::ChannelLoad target, UnitInterval delay)

	DccInformationSharing (Runtime &rt, const LocationTable &lt, dcc::ChannelLoad target)

DccField	generate_dcc_field () override

void	update_local_cbr (dcc::ChannelLoad cbr)

Public Attributes
HookRegistry< const CbrAggregator & >	on_global_cbr_update

Private Member Functions
void	trigger ()

Private Attributes
Runtime &	m_runtime

const LocationTable &	m_location_table

const dcc::ChannelLoad	m_cbr_target

dcc::ChannelLoad	m_cbr_local

CbrAggregator	m_aggregator

Clock::duration	m_trigger_interval

Timestamp	m_last_aggregation

Hook< const CbrAggregator & >	m_update_hook

Detailed Description

DccInformationSharing realises the DCC_net behaviour for ITS-G5

See also: TS 102 636-4-2 V1.1.1

CBR_target mentioned in TS 102 636-4-2 V1.1.1 is probably the same constant as NDL_maxChannelUse mentioned in TS 102 687 V1.1.1. However, no value is given: Table A.3 in TS 102 687 declares them (implicitly through NDL_tmPacketArrivalrate) "n.a.". Thus, we simply assume CBR_target = NDL_maxChannelUse = NDL_maxChannelLoad.

Definition at line 29 of file dcc_information_sharing.hpp.

Constructor & Destructor Documentation

◆ DccInformationSharing() [1/2]

vanetza::geonet::DccInformationSharing::DccInformationSharing	(	Runtime &	rt,
		const LocationTable &	lt,
		dcc::ChannelLoad	target,
		UnitInterval	delay
	)

Create DCC_net instance

Parameters

rt	Runtime for scheduling periodic update cycles
lt	Location Table with LocTEX_G5 entries
target	CBR_target value (usually NDL_maxChannelLoad)
delay	Delaying first update cycle randomly

Note: Set random delay interval when multiple stations are created at the same time! Values shall be distributed uniformly across full integer range.

Definition at line 10 of file dcc_information_sharing.cpp.

◆ DccInformationSharing() [2/2]

vanetza::geonet::DccInformationSharing::DccInformationSharing	(	Runtime &	rt,
		const LocationTable &	lt,
		dcc::ChannelLoad	target
	)

Definition at line 21 of file dcc_information_sharing.cpp.

Member Function Documentation

◆ generate_dcc_field()

DccField vanetza::geonet::DccInformationSharing::generate_dcc_field ( )

overridevirtual

Implements vanetza::geonet::DccFieldGenerator.

Definition at line 26 of file dcc_information_sharing.cpp.

◆ trigger()

void vanetza::geonet::DccInformationSharing::trigger ( )

private

Definition at line 40 of file dcc_information_sharing.cpp.

◆ update_local_cbr()

void vanetza::geonet::DccInformationSharing::update_local_cbr ( dcc::ChannelLoad cbr )

Update local CBR measurement

Local measurement rate is decoupled from processing in DCC_net, i.e. DccInformationSharing buffers the given value and the latest measurement value when its internal update cycle runs.

Parameters