Research of Network Planning and Optimization Model

We present a model to deterring the minimum number of repeaters in a circular flat area of radius 40 miles radius. First we give the receive radius of a repeater. It is approximately 20km. Second, we design a model to obtain the necessary number of repeater when there are 1,000 users, and the result is19. Thirdly, we obtain the number of repeater by the foregoing model when users increase to 10,000, the result become 143. Finally, we discuss the situation in mountainous areas.