Wireless Communication Diversity Techniques

Play an AI-generated podcast conversation about this lesson

Define Beamwidth.

Beamwidth is the angular separation between the half-power points of the main lobe of an antenna's radiation pattern.

What is Waveguide Dispersion?

Waveguide Dispersion refers to the spreading of different frequencies, each with its own propagation velocity, in a waveguide.

Explain Frequency Diversity.

Frequency Diversity involves transmitting the same signal simultaneously over different frequencies to improve signal reliability.

What is Diversity in the context of wireless communication?

Diversity is a technique used to combat fading and improve the reliability of wireless communication systems by using multiple transmission paths. Signup and view all the answers

Describe Space Diversity.

Space Diversity is a technique where multiple antennas are used to transmit or receive the same signal from different spatial locations. Signup and view all the answers

How does Space Diversity differ from Frequency Diversity?

Space Diversity uses multiple antennas to combat fading due to different spatial locations, while Frequency Diversity uses different frequencies to improve signal reliability. Signup and view all the answers

What is the definition of beamwidth?

The angular width of the main lobe of the radiation pattern of an antenna, typically measured between the points where the power drops to half (or 3dB) of its maximum value. Signup and view all the answers

Explain waveguide dispersion.

Waveguide dispersion is the phenomenon where different frequencies of electromagnetic waves travel at slightly different speeds in a waveguide, leading to dispersion and distortion of signals. Signup and view all the answers

What is the purpose of using diversity in a microwave system?

To increase the reliability of the system by increasing its availability. Signup and view all the answers

Describe frequency diversity.

Frequency diversity involves modulating two different RF carrier frequencies with the same IF intelligence, transmitting both RF signals, and selecting the carrier that yields the better-quality IF signal at the destination. Signup and view all the answers

What is space diversity?

Space diversity is when the output of a transmitter is fed to two or more antennas that are physically separated by an appreciable number of wavelengths, improving signal reliability. Signup and view all the answers

How does diversity contribute to the performance of a communication system?

Diversity provides multiple transmission paths or methods between a transmitter and receiver, increasing reliability and availability. Signup and view all the answers

What is the process of transferring an ongoing call or data session from one cell to another without interruption?

Handover Signup and view all the answers

What is the process of resizing, redistributing, or subdividing highly congested cells into smaller cells to increase channel capacity?

Cell Splitting Signup and view all the answers

How does Cell Sectorization help in decreasing CCI while increasing channel capacity?

By using directional antennas Signup and view all the answers

What technology is used in wireless communication to transmit multiple data streams simultaneously over the same radio channel?

MIMO (Multiple Input Multiple Output) Signup and view all the answers

What is the term for a communication system configuration with only one antenna at both the transmitter and receiver?

SISO (Single Input Single Output) Signup and view all the answers

What process involves dividing a group of channels into smaller groups or segments of mutually exclusive frequencies?

Cell Segmentation Signup and view all the answers