The correct answer is D. Number of base stations is reduced.
Frequency reuse is a technique used in cellular networks to increase the capacity of the network by allowing multiple cells to use the same frequency band. This is done by dividing the cells into smaller areas, called sectors, and then assigning each sector a different frequency. This allows more users to be connected to the network at the same time.
The advantages of frequency reuse are:
- Increased capacity: Frequency reuse allows more users to be connected to the network at the same time.
- Limited spectrum is required: Frequency reuse can be used to increase the capacity of the network without having to allocate more spectrum.
- Same spectrum may be allocated to other network: Frequency reuse can be used to share spectrum between different networks.
The disadvantage of frequency reuse is that it can cause interference between cells. This is because the cells are using the same frequency band. To reduce interference, the cells must be spaced apart by a certain distance. This distance is called the reuse distance.
The number of base stations is not reduced by frequency reuse. In fact, the number of base stations may need to be increased in order to achieve the desired level of coverage and capacity. This is because the cells must be spaced apart by a certain distance in order to reduce interference.