QCM : Cellular Capacity Optimization Techniques — 8 questions

Explication

Cell splitting is the process of subdividing a congested larger cell into smaller cells, each with its own base station, to increase system capacity without requiring additional spectrum. It involves reducing the cell radius, antenna height, and transmitter power to match the smaller coverage area.

Explication

The content explicitly attributes the definitions and explanations of cell splitting to Dr. Hiba M Isam, making this the correct answer.

Explication

Coverage zone approaches aim to localize base station radiation by dividing a cell into smaller zones connected via high-speed links, which reduces interference and enhances capacity. This approach helps in managing interference and improving overall system performance by confining radio coverage to smaller, localized zones.

Explication

The microcell concept was established after the initial cellular systems were deployed as a technique to increase capacity by subdividing cells into smaller microcells. It is a development that came after the initial deployment of cellular networks to address congestion and capacity issues.

Explication

Channel Reuse involves reusing the same frequency channels in different cells separated enough to avoid interference, thus increasing capacity without changing cell size. Cell Splitting, on the other hand, physically subdivides a large cell into smaller cells, each with its own base station, to increase capacity. These are fundamentally different approaches: one is about frequency planning, the other about physical cell structure.

Explication

Dr. Hiba M Isam is credited with discussing the use of antenna down tilting to control radio coverage and interference in cellular systems, as per the provided course context.

Explication

Implementing interference reduction techniques like sectoring and micro zone deployment localizes signals and reduces co-channel interference, which results in decreased interference levels and improved signal quality.

Explication

Supporting intra-cell handoffs between sectors without involving the MSC allows for seamless mobility and reduces signaling load, especially in systems with sectoring and micro zones, where local management of handoffs is possible.