BleMeshMac

Description

Parameters

Name	Type	Unit	Default value	Description
address	string		"auto"
headerLength	int	b	72 b	length of MAC header
mtu	int	B	0B
bitrate	double	bps	250000 bps	bit rate
ccaDetectionTime	double	s	0.000128 s	Clear Channel Assessment detection time
rxSetupTime	double	s	0 s	Time to setup radio to reception state
aTurnaroundTime	double	s	0.000192 s	Time to switch radio from Rx to Tx state
useMACAcks	bool			Send/Expect MAC acks for unicast traffic?
macMaxFrameRetries	int		3	Maximum number of frame retransmission, only used when usage of MAC acks is enabled.
macAckWaitDuration	double	s	0.00056 s	Time to wait for an acknowledgement after transmitting a unicast frame. Only used when usage of MAC acks is enabled. Value is calculated from 1+12+10+12 symbols, which is defined for nonbeacon-enabled PAN. In the non-beacon-enabled case, the receiver responds at aTurnaroundTime (i.e. the time for the sender and receiver to both be guaranteed to have switched from Tx to Rx and vice verse). This gives the value 192us + 352us = 544us (there's been some discussion about the "extra" 1 symbol == 16us) [section 7.5.6.4.2 of the specification].
ackLength	int	b	40 b	Complete MAC ack message length (in bits) (! headerLength is not added to this), only used when usage of MAC acks is enabled.
sifs	double	s	0.000192 s	Simple interframe space (12 symbols). Time to wait between receiving a frame and acknowledging it. Should be bigger than the maximum time for switching between Tx and Rx at the receiver. Only used when usage of MAC acks is enabled.
backoffMethod	string		"linear"	Backoff method to use: constant, linear or exponential
macMaxCSMABackoffs	int		5	maximum number of extra backoffs (excluding the first unconditional one) before frame drop
aUnitBackoffPeriod	double	s	0.00032 s	base unit for all backoff calculations
contentionWindow	int		2	# of backoff periods of the initial contention window (for linear and constant backoff method only)
macMinBE	int		3	minimum backoff exponent (for exponential backoff method only)
macMaxBE	int		8	maximum backoff exponent (for exponential backoff method only)
radioModule	string		"^.radio"
lowPowerNode	bool		false