Discussion
Which of the following technology distributes the coverage of the cell and extends the cell boundary to hard-to-reach places ?
Answer: C
The micro cell zone concept distributes the coverage of a cell and extends its boundary to hard-to-reach places.
In this technique (described in Rappaport's Wireless Communications) one base station serves a cell divided into several zones, each covered by a small, low-power zone transmitter connected to the base station. As a mobile moves between zones within the cell it stays on the same channel and no handoff is needed. The zone sites can be placed in tunnels, valleys or along roads, so coverage reaches spots a single site would miss, and interference falls.
Sectoring divides a cell with directional antennas to reduce interference, and cell splitting creates smaller cells to increase capacity. Scattering is a propagation effect, not a cell design technique.
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