To efficiently reuse wireless spectrum, wireless network are divided into cells. In general a cell is a hexagon in shape. Based on the radius of the cells, there are three types of cellular networks, including (1) macrocells, (2) microcells, and (3) picocells. Macrocellar wireless network A macrocell can cover a large area with a radius ranging from 1 to 10 km. a distinction can be further made to for large macrocells and small macrocells. A large macrocell can cover a range with a radius of 5 to 10 km, which is mainly used for rural areas with little traffic. In contrast, a small macrocell generally covers a range with a radius between 1 and 5 km. This types of cells are used if traffic density is high. Macrocellar wireless networks transmit a very high radio power View the rest of this article
Wednesday, September 19, 2007
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