Research On Coverage Accuracy Based On CDMA Wireless Network

Chinese telecom’s CDMA network through the large-scale construction of cellular sites, hasbeen formed in the urban area and rural farming area covered with a layer of good. Because theCDMA wireless communication system has respiratory effects, with the explosive growth of thetotal users lead to the cover blind spots. Especially in urban residential area and the developed ruralfarming region is more noticeable, in this paper, the accurate coverage under the two kinds oftypical scenario is studied.This article firstly introduces the characteristic of CDMA communication system. Differentfrom the2G network, CDMA network system is the self-jamming communication system with softcapacity characteristics, which proposed the new task to network coverage and planning. Thenbased on the data illustrates the relationship between users and network quality. Then the articleputs forward the accurate covers general train of thought, under this approach, combined with theactual environment survey and theoretical data, and analyzed the difficulties of the CDMA networkcoverage in rural areas and the flaws of the network. The network coverage difficulties inresidential area mainly includes coverage targets relative dispersion which lead to difficulty forsource selection and power allocation, the dense outer loose inside characteristics of the villageresident make indoor distribution system signal is very difficult to penetrate the wall for the indooruser active region to form effective cover, top pilot pollution, signal leak is difficult to control andengineering implementation is difficult etc. Then points out the problems existing in the areacovered, including distribution system construction plan improper positioning; Low-cost dripirrigation station lack of use etc. Rural areas mainly reflects on the coverage, there are still someareas station spacing between larger cause lead to a lot of coverage blind area. Based on these, thearticle detailed analysis several commonly used network coverage way, macro cellular base stationcoverage, drip irrigation coverage, indoor distribution system coverage’s merit and demerit andtheir adapted scene. Finally, scientifically put forward two kinds of typical accurate coveragescheme.