Study Of The Performance In Viral Mobile Communication System Based On Cross Entropy

This paper studies the technologies and methods which apply the viral communication theory to point-to-point communications in 3G and 4G CDMA mobile communication systems. Introducing the relevant theory and technology, the construction method of link equation based on cross entropy in viral mobile communication is proposed.This method is aimed at broadband CDMA mobile communication systems in special circumstances.Firstly,aiming at mobile communication in special circumstances,the viral communication is implied to 3G and 4G CDMA mobile communication systems and the main characteristics of viral mobile communication is given. According to the link capacity equation of mobile communication network, the link capacity equation of viral mobile communication network is constructed. Combing the microcell cellular base stations,we give the viral mobile communication probability of users in microcell.At the same time we analyze the impact on network performance parameters.By introducing the conception of cross entropy, the possibility and validity of point-to-point information transmission and exchange among mobile users in the viral mobile communication network is simulated and verified. The analysis results provide a theoretical basis for the application of viral mobile communication to 3G and 4G CDMA mobile communication systems.Secondly, the viral mobile communication is applied to 3G and 4G CDMA mobile communication systems. The link equation of handover call probability about mobile users' call model in viral mobile communication network is constructed based on cross entropy. Meanwhile the system flow chart of link equation without or with feedback in viral mobile communications based on cross entropy is put forward. Aiming at voice service and video service, we simulate and analyze the impact of the relevant performance index of microcell's mobile users on the performance of viral mobile communication network under time domain and frequency domain respectively. The analysis results verify the feasibility of point-to-point information transmission and exchange among mobile users in the viral mobile communication network.Thirdly, aiming at broadband CDMA mobile communication system, a construction method of the link equation in the viral soft handover communication based on cross entropy is established. Considering the balance of the forward and backward link, this method constructs the link equation through defining the backward and forward link equation of viral mobile communication.By introducing the conception of cross entropy, the impact of the normalized probability of viral mobile users'emission power in microcells on network performances is simulated and analyzed. This result supplies a method for applying the viral soft handover mobile communication link equation to 3G and 4G CDMA mobile communication systems and verifies the operability of point-to-point information transmission and exchanges among the mobile users in the viral mobile communication network.Through analyzing the relevant parameters characteristics of mobile users, the mathematical model of point-to-point information transmission and exchange among mobile terminals in microcell is constructed. From the point of view of experimental research, we try to resolve the problem of realizing the point-to-point information transmission between mobile terminals without the participation and support of the upper devices of mobile users.And thus the point-to-point information transmission and exchange among numerous mobile terminals can be achieved within a certain distance and range.