无线网络规划中的站址优化分布的研究与实现

he wireless network deployment is the process to design a reasonable network, meet the requirements at the lowest cost according to coverage, capacity, other limitations and the characters of different terrains. The major cost of wireless network deployment is the construction of BS. So if we can get the distribution of the needed BS, we can estimate the cost of network deployment proximately. In this paper we use the Center-of-Gravity (C.G.) method in city planning to select the BS sites. Assuming the users in the planning area as a physical system in one plane, the user density as the density of the object, other factors as weight value, then the center of the physical system can be the location of BS. There are two schemes: user density based C.G. method make the BS closer to the high user density point as much as possible to optimize site distribution and improve service quality; the scheme considering user's priority is based on the former scheme and add priority factors to make the BS closer to high degree users, give high degree users better service quality. This scheme can optimize network structure and provide support for the strategy of different service.