Design And Realization Of Intelligent Planning System For Rural Access Network

With the development of various emerging Internet services,people's demand for high bandwidth is increasing.At present,the urban access network has basically achieved full coverage of "fiber to the home",but for rural areas in underdeveloped areas,there are still many difficulties in achieving full "fiber to the home".Due to the low concentration of households in rural areas and the long distance between villages,the cost of optical fiber construction is relatively high and difficult;and compared with urban users,rural users are generally scattered,and ODN network planning is very difficult,Such as how to optimize the location of the light splitting point and the selection of the optical fiber optimal construction line.This article mainly focuses on reducing the difficulty of rural access network planning,and in-depth study of the difficulties and key points in access network planning-ODN network planning issues,and develops a set of rural access network intelligent planning system,aiming at ODN The problem of difficult network planning,combined with the existing planning scheme,puts forward a "upper and lower" planning scheme.The specific research content is as follows:(1)Aiming at the "down" in the scheme,that is to plan the distribution line,a clustering algorithm based on user distribution is proposed.This algorithm uses the clustering algorithm for the planning of the second-level light-splitting point,takes the construction cost as a cost function,finds the approximate optimal number of clusters and clustering scheme,and further relies on the conditions such as the location of the second-level light-splitting point to automatically determine the first-level The position of the light splitting point makes the planning result approximate to the optimal cost.It is verified by simulation that this algorithm can reduce the total optical fiber construction cost by more than 20%compared with the random sector method under the three types of rural distribution.(2)Aiming at the "up" in the scheme,that is,to plan the feeder line,this paper proposes a feeder line planning algorithm based on spanning tree algorithm.This algorithm regards the coverage of PON as a limiting condition,combined with the classical minimum tree algorithm Kruskal,finds the construction line with the smallest optical fiber that meets the conditions,and optimizes the construction cost of the planning result.(3)Based on the algorithm proposed in this paper,an intelligent planning system is developed,and each function of the system is designed and realized.