Research of Network Planning and Optimization Model

摘要

The VHF radio spectrum has been widely used in many fields like telecommunications, navigation and military arena. With the coming of the information age by the end of 20th century, the strategic value of radio spectrum has been recognized by many nations around the world.The VHF involves line-of-sight transmission and reception, in order to widen the distance of signals, there need repeaters in the process of transmission. Repeaters can interfere with one another unless they are far enough apart or transmit on sufficiently separated frequencies. The problem we are facing here is for a circular flat area of radius 40 miles radius, determine the minimum number of repeaters necessary to accommodate 1,000 simultaneous user sand how the solution changes if there are 10,000 users?