A Scenario - part 2

• From the tower on top of the hill to the house in the valley, our system has the following properties:

• • EIRP (Equivalent isotropically radiated power) 32dBm = 20dBm Tx + 12dB gain
  • Received at the house 32dB – 112dB + 8dB = -72dB
  • Rx sensitivity = -80dB
  • Link Budget = 8dB
  • Note, that path is symmetrical from the house, 20 + 8 – 112 + 12 = -72
  • For an 802.11b link this might be kind of marginal especially as their might be unaccounted for loss elements in our model, for some other technologies 8dB might be more than enough.