Cellular Network Concepts and Techniques

The video tutorial covers three main techniques to improve cellular network capacity: cell splitting, cell sectoring, and microcell zones. Cell splitting involves dividing a congested cell into smaller cells, each with its own base station, to increase coverage capacity. Cell sectoring uses sectorized antennas to reduce co-channel interference, allowing more channels per cell. Microcell zones involve using a single base station to manage multiple smaller cells, reducing power needs but increasing complexity and cost. The tutorial also discusses omnidirectional antennas and frequency reuse patterns.

What is the primary goal of cell splitting in cellular networks?

• To increase the number of base stations

• To eliminate co-channel interference

• To reduce the transmitted power

• To subdivide a congested cell into smaller cells

How does cell splitting affect the coverage capacity of a cellular network?

• It decreases the coverage capacity

• It increases the coverage capacity

• It has no effect on coverage capacity

• It only affects the transmitted power

What is the role of an omnidirectional antenna in cellular networks?

• To reduce the number of base stations

• To radiate signals equally in all horizontal directions

• To focus signals in one direction

• To increase the transmitted power

How does cell sectoring improve the capacity of a cellular network?

• By reducing co-channel interference

• By increasing the number of base stations

• By eliminating the need for antennas

• By increasing the transmitted power

What is a key advantage of cell sectoring?

• It eliminates the need for frequency reuse

• It improves the signal-to-interference ratio

• It reduces the number of antennas needed

• It increases trunk efficiency

What is a limitation of cell sectoring?

• It increases trunk efficiency

• It requires more antennas at each base station

• It decreases the number of channels per cell

• It eliminates co-channel interference

What is a primary benefit of implementing microcell zones?

• They require more power

• They allow for more channels per cell

• They reduce the need for base stations

• They eliminate the need for antennas

What is a challenge associated with microcell zones?

• They are inexpensive to implement

• They have a high implementation cost

• They reduce the number of channels per cell

• They require fewer antennas

How are microcell zones connected to the base station?

• Via satellite link

• Via coaxial cable, fiber optics, or microwave link

• Via direct wireless connection

• Via a single antenna

What is the relationship between signal-to-interference ratio and capacity increment in cell splitting?

• They are inversely proportional

• They are directly proportional

• They are unrelated

• They are equal