avrora.sim.radio.freespace
Class FreeSpaceAir

java.lang.Object
  avrora.sim.radio.freespace.FreeSpaceAir

All Implemented Interfaces:

RadioAir

public class FreeSpaceAir

extends java.lang.Object

implements RadioAir

Implementation of the free space radio propagation model

Nested Class Summary

protected class

FreeSpaceAir.MeetEvent

Field Summary

static int	bitPeriod
static int	bitPeriod2
static int	bytePeriod The amount of cycles it takes for one byte to be sent.
protected java.util.HashSet	radios

Constructor Summary

FreeSpaceAir(Topology top)
new free space air

Method Summary

void	addRadio(Radio r) The addRadio() method adds a new radio to this radio model.
Synchronizer	getSynchronizer() The getSynchronizer() method gets the synchronizer for this air implementation.
byte	readChannel(Radio r) The readChannel() method reads the value of the channel at the current time so that the last 8 bits transmitted (where the bits are 0 if there are no transmissions) are returned.
void	removeRadio(Radio r) remove radio
int	sampleRSSI(Radio r) see simple air for more
void	transmit(Radio r, Radio.Transmission f) transmit packet

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

radios

protected final java.util.HashSet radios

bytePeriod

public static final int bytePeriod

The amount of cycles it takes for one byte to be sent.

See Also:

Constant Field Values

bitPeriod

public static final int bitPeriod

See Also:

Constant Field Values

bitPeriod2

public static final int bitPeriod2

See Also:

Constant Field Values

Constructor Detail

FreeSpaceAir

public FreeSpaceAir(Topology top)

new free space air

Method Detail

addRadio

public void addRadio(Radio r)

Description copied from interface: RadioAir

The addRadio() method adds a new radio to this radio model.

Specified by:

addRadio in interface RadioAir

Parameters:

r - the radio to add to this air implementation

removeRadio

public void removeRadio(Radio r)

remove radio

Specified by:

removeRadio in interface RadioAir

Parameters:

r - the radio to remove from this air implementation

See Also:

RadioAir.removeRadio(avrora.sim.radio.Radio)

transmit

public void transmit(Radio r,
                     Radio.Transmission f)

transmit packet

Specified by:

transmit in interface RadioAir

Parameters:

r - the radio transmitting this packet

f - the radio packet transmitted into the air

See Also:

RadioAir.transmit(avrora.sim.radio.Radio, avrora.sim.radio.Radio.Transmission)

sampleRSSI

public int sampleRSSI(Radio r)

see simple air for more

Specified by:

sampleRSSI in interface RadioAir

Parameters:

r - the radio sampling the RSSI value

Returns:

an integer value representing the received signal strength indicator

See Also:

RadioAir.sampleRSSI(avrora.sim.radio.Radio)

readChannel

public byte readChannel(Radio r)

Description copied from interface: RadioAir

The readChannel() method reads the value of the channel at the current time so that the last 8 bits transmitted (where the bits are 0 if there are no transmissions) are returned.

Specified by:

readChannel in interface RadioAir

Parameters:

r - the radio sampling the channel

Returns:

the last 8 bits transmitted in the channel

getSynchronizer

public Synchronizer getSynchronizer()

Description copied from interface: RadioAir

The getSynchronizer() method gets the synchronizer for this air implementation.

Specified by:

getSynchronizer in interface RadioAir

Returns:

a reference to the synchronizer for this radio model.