Research On Reliability Of Specific Area For Wireless Communication Network

Wireless cellular network is the mainstream of wireless communication networks. Mobile Ad Hoc Network is a new wireless network. Characteristics of their networks are complementary. The communication reliability problem of special area in cellular network becomes the social research hotspot. The combination of cellular network and Mobile Ad Hoc Network has widely used in the military, industrial, life and other fields.On the basis of mastering involved related theory, technology and the solving methods, under the combination of cellular network and Mobile Ad Hoc Network, due to continuous signal attenuation in the process of mobile node enter communication "Dead spot", solution the communication performance problems. By analyzing the factors of physical location of the node, the movement and associated with the adjacent nodes in the communication process, gives single-point communication theory. Use of relay area to provide communication services enter the "Dead spot" node. For the communication nodes fully into the "Dead spot' give the strategy of pursuit communication in the case of no relay area. Set up mobile node communication reliability optimization model. Design the solving methods. Simulation results show the method is effective and feasible.In addition, on the basis of only considering the problem of signal's regional coverage in wireless network in normal conditions, this thesis also researches the signal's connectedness problem. Through set benchmarking within "Dead spot", give index of signal distribution rate and coverage. Propose the branching tree communication algorithm. Set up the "Dead spot" communication reliability optimization model. Example simulation shows this method can effectively relieve the problem of communication inside "Dead spot" and improve "Dead spot" communication reliability.