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WorksheetsATE6123 - Fundamental of Wireless Communications - Topic 2
Total questions: 10
Worksheet time: 5mins
What is the unit of measurement for frequency in radio waves?
Amplitude
Newton
Hertz (Hz)
Joule
Which of the following best describes a digital signal?
A signal that varies continuously with no breaks
A signal that reflects light
A signal with discrete or separate pulses
A signal that flows in a circular motion
What does EIRP stand for in wireless communication?
Effective Input Radiated Power
Effective Isotropic Radiated Power
Enhanced Integrated Radio Power
Electromagnetic Isotropic Radiated Power
What causes diffraction of a radio wave?
Small objects relative to the wavelength
Clear line-of-sight between transmitter and receiver
Reflection off smooth surfaces
Obstruction by sharp edges blocking the line-of-sight path
What is the main purpose of performing a link budget analysis when designing a wireless network?
To calculate the Doppler shift
To determine system latency
To estimate end-to-end system performance
To predict modulation schemes
What causes small-scale fading in a wireless communication system?
Long-distance signal attenuation
Power supply fluctuations
Interference of multiple signal paths arriving at different times
Signal blockage by large buildings
Which of the following factors does NOT influence small-scale fading?
Speed of the mobile
Speed of surrounding objects
Signal bandwidth
Number of antennas at the base station
What is the main purpose of a mixer in a radio system?
To eliminate unwanted frequencies
To increase signal strength
To convert input frequency to a desired output frequency
To block RF signals outside a desired range
Which of the following filters allows only signals within a certain frequency range to pass through?
Low-pass filter
High-pass filter
Bandpass filter
Notch filter
Which of the following multiple access techniques assigns a unique code to each user for simultaneous transmission on the same frequency?
FDMA
TDMA
CDMA
SDMA
