WorksheetsMIMO
Total questions: 5
Worksheet time: 3mins
Identify the phenomenon that enables MIMO receivers to exploit signals arriving through multiple distinct paths for improved performance.
Multipath Propagation
Doppler spread
Free-space attenuation
Frequency reframing
Identify the primary advantage that massive MIMO systems exploit in wireless networks.
It increases spatial Degrees of Freedom using many antennas
It avoids synchronisation because antennas transmit independently
It reduces power consumption by using fewer antennas overall
It eliminates fading by operating at extremely low frequencies
Why TDD is preferred over FDD for channel estimation in massive MIMO? Identify the principle.
Exploitation of channel reciprocity
Lower hardware complexity
Separate spectrum allocation
Reduced interference
Identify the primary limitation encountered with FDD duplexing in massive MIMO.
High pilot and feedback overhead
Lack of beamforming
Low spectral efficiency
Poor antenna gain
Identify the energy-efficiency principles of 5G network design that reduces overall power consumption.
Beamforming and sleep modes
Higher power
Larger antennas
Fixed scheduling