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## avrora.sim.radio.freespace
Class LocalAirImpl

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

All Implemented Interfaces:
  LocalAir

public class LocalAirImpl
extends java.lang.Object
implements LocalAir

Implementation of Local Air

Nested Class Summary
`protected class` | `LocalAirImpl.Deliver` handles the final delivery to the radio

Nested classes inherited from class avrora.sim.radio.freespace.LocalAir
`LocalAir.PowerRadioPacket`

Field Summary

Fields inherited from interface avrora.sim.radio.freespace.LocalAir
`bytePeriod, sampleTime`

Constructor Summary
`LocalAirImpl(Radio r, Position pos)` new local air

Method Summary
`void` | `addNeighbor(LocalAir r)` add neighbor
`void` | `addPacket(Radio.RadioPacket p, double pow, Radio sender)` receive a packet
`protected long` | `computeNextDelivery(long globalTime)` find the right packet to deliver
`java.util.Iterator` | `getNeighbors()` tell me, who is around
`Position` | `getPosition()` get node position
`Radio` | `getRadio()`
`void` | `removeNeighbor(LocalAir r)` remove a node
`int` | `sampleRSSI(long cycles)` compute signal strength bases on @see avrora.sim.radio.SimpleAir#sampleRSSI(long) by Daniel Lee
`void` | `scheduleDelivery(long globalTime, Simulator sim)` schedule a packet for delivery

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### LocalAirImpl

    public LocalAirImpl(Radio r,
                        Position pos)

  new local air

Parameters:
  `r` - radio
  `pos` - position

Method Detail

### getPosition

    public Position getPosition()

  get node position

  Specified by:
    `getPosition` in interface `LocalAir`
  Returns:
    node position
  See Also:
    `LocalAir.getPosition()`

### getRadio

    public Radio getRadio()

  Specified by:
    `getRadio` in interface `LocalAir`

### addNeighbor

    public void addNeighbor(LocalAir r)

  add neighbor

  Specified by:
    `addNeighbor` in interface `LocalAir`
  Parameters:
    `r` - node radio
  See Also:
    `LocalAir.addNeighbor(avrora.sim.radio.freespace.LocalAir)`

### removeNeighbor

    public void removeNeighbor(LocalAir r)

  remove a node

  Specified by:
    `removeNeighbor` in interface `LocalAir`
  Parameters:
    `r` - node radio
  See Also:
    `LocalAir.removeNeighbor(avrora.sim.radio.freespace.LocalAir)`

### getNeighbors

    public java.util.Iterator getNeighbors()

  tell me, who is around

  Specified by:
    `getNeighbors` in interface `LocalAir`
  Returns:
    node list iterator
  See Also:
    `LocalAir.getNeighbors()`

### addPacket

    public void addPacket(Radio.RadioPacket p,
                          double pow,
                          Radio sender)

  receive a packet

  Specified by:
    `addPacket` in interface `LocalAir`
  Parameters:
    `p` - packet
    `pow` - transission power
  See Also:
    `LocalAir.addPacket(avrora.sim.radio.Radio.RadioPacket, double, avrora.sim.radio.Radio)`

### sampleRSSI

    public int sampleRSSI(long cycles)

  compute signal strength bases on @see avrora.sim.radio.SimpleAir#sampleRSSI(long) by Daniel Lee

  Specified by:
    `sampleRSSI` in interface `LocalAir`
  Parameters:
    `cycles` - time
  Returns:
    signal strength
  See Also:
    `LocalAir.sampleRSSI(long)`

### scheduleDelivery

    public void scheduleDelivery(long globalTime,
                                 Simulator sim)

  schedule a packet for delivery

  Specified by:
    `scheduleDelivery` in interface `LocalAir`
  Parameters:
    `globalTime` - delivery time
    `sim` - the simulator
  See Also:
    `LocalAir.scheduleDelivery(long, avrora.sim.Simulator)`

### computeNextDelivery

    protected long computeNextDelivery(long globalTime)

  find the right packet to deliver

  Parameters:
    `globalTime` - current time
  Returns:
    time to deliver

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