Wireless Networking · Unit 4
Signal Propagation and Path Loss
Exam-focused notes for Signal Propagation and Path Loss (Wireless Networking, BIT357): what the TU syllabus asks and how it has actually been tested, with 1 solved past questions from this unit.
What this unit covers
- Free space propagation model
- Path loss calculation
- Transmitter and receiver antenna gains
- Carrier frequency effects
- Distance effects on signal propagation
Free space propagation model
Explain free space propagation model. If transmitter power 1W carrier frequency is 2.4GHz and receiver is at distance 2 km. Assume that transmitter and receiver antennas gains are 1.6. Express the transmit power in dBm and dBW and find path loss in dB.[10]
Given data: - Transmit power: $Pt = 1$ W - Carrier frequency: $f = 2.4$ GHz $= 2.4 \times 10^9$ Hz - Distance: $d = 2$ km $= 2000$ m - Transmitter antenna gain: $Gt = 1.6$ - Receiver antenna gain: $Gr = 1.6$ - Speed of light: $c = 3 \times 10^8$ m/s --- The...
Full solved answer →Make Unit 4 stick
Practice BIT357 with flashcards & quizzes