Simple Module BMacLayer

Package: org.mixim.modules.mac
File: modules/mac/BMacLayer.ned

Implementation of B-MAC (called also Berkeley MAC, Low Power Listening or LPL). See C++ documentation for details.

Usage diagram:

The following diagram shows usage relationships between types. Unresolved types are missing from the diagram. Click here to see the full picture.

Inheritance diagram:

The following diagram shows inheritance relationships for this type. Unresolved types are missing from the diagram. Click here to see the full picture.

Extends:

BaseMacLayer (simple module)

Base module for every mac layer module

Used in compound modules:

If a module type shows up more than once, that means it has been defined in more than one NED file.

NicBMAC (compound module)

This module implements a BMAC network interface card using the "BMACLayer" MAC layer module

Parameters:

Name	Type	Default value	Description
notAffectedByHostState	bool	false
coreDebug	bool		debug switch
headerLength	double		length of the MAC packet header (in bits)
debug	bool	false	debug switch
stats	bool	true	collect statistics?
slotDuration	double	1s	BMAC specific parameters how long is one slot?
checkInterval	double	0.01s	how long is the check interval (CCA)?
queueLength	double	20
animation	bool	true	should we animate the nodes with colors depending on their state or not?
bitrate	double	19200 bps	bit rate
txPower	double	50 mW	tx power [mW]
useMACAcks	bool	false	should mac send and expect acknowledgments?
macMaxFrameRetries	double	3	maximum number of frame retransmission only used when usage of MAC acks is enabled

Properties:

Name	Value	Description
class	BMacLayer

Gates:

Name	Direction	Description
upperGateIn	input	from upper layer
upperGateOut	output	to uppe layer
upperControlIn	input	control from upper layer
upperControlOut	output	control to upper layer
lowerGateIn	input	from lower layer
lowerGateOut	output	to lower layer
lowerControlIn	input	control from lower layer
lowerControlOut	output	control to lower layer

Source code:

//
// Implementation of B-MAC (called also Berkeley MAC, Low Power Listening or 
// LPL).
// See C++ documentation for details.
//
simple BMacLayer extends BaseMacLayer
{
    parameters:
        @class(BMacLayer);
        // debug switch
        bool debug = default(false);
        //collect statistics?
        bool stats = default(true);

        // BMAC specific parameters
        // how long is one slot?
        double slotDuration @unit(s) = default(1s);

        // how long is the check interval (CCA)?
        double checkInterval @unit(s) = default(0.01s);

		// size of the MAC queue (maximum number of packets in Tx buffer)
        double queueLength = default(20);

        // should we animate the nodes with colors depending on their state or 
        // not?
        bool animation = default(true);

        // bit rate 
        double bitrate @unit(bps) = default(19200 bps);

        //tx power [mW]
        double txPower @unit(mW) = default(50 mW);

        //should mac send and expect acknowledgments?
        bool useMACAcks = default(false);
        // maximum number of frame retransmission
        // only used when usage of MAC acks is enabled
        double macMaxFrameRetries = default(3);
}