Mobile Group-aware Network Topology Control Research

Since the 20 th century,with the rapid development of science and technology,the global economic level quickly upgraded,people's living standards promote the promotion of mobile Internet applications in Basic necessities of life.The rapid application and updating of technology has led to a higher demand for technology which relates to everyday life,especially on the mobile applications.This paper analyzes the current situation of the application and development of Internet communication technology domestic and foreign.Combining the hotspot of distributed mobile application in recent years,this paper researches related problem of topology in mobile Crowd Sensing(MCS)under the mobile node movement situation.Because the communication nodes in the MCS network are mobile handsets,the communication nodes have mobile characteristics compared with the traditional wireless sensor network communication nodes.Therefore,the topology established by the MCS network may change in a relatively short period of time.In order to reduce the influence of node movement on the performance of network communication topology,it often use the way to increase the communication power of communication nodes and expand the transmission range of node signals in MCS networks without corresponding topology control scheme to maintain the communication success rate of NodeToNode(N2N)and NodeToInfrustracture(N2I),this method can maintain the communication requirements of N2 N and N2 I in a short time,but it is at the expense of the huge energy consumption of the communication node.at same time,The communication between the communication nodes is seriously disturbed,which reduces the communication quality and success rate of the whole network.Therefore,based on the analysis of the characteristics of MCS network topology,combined with the principle of network topology control technology,this paper propose two solutions to reduce the energy consumption of MCS network caused by network communication node movement in MCS network environment,and improve the communication efficiency of the whole MCS network.1.In this paper,the RNG algorithm and principle of planar MCS network topology control based on distance feature are analyzed.Combining with the concept of communication node logical region division,a topology control scheme-ACRNG algorithm based on distance adaptive communication node clustering is proposed.The algorithm is based on the distance clustering criteria,combined with the communication node of the signal transmission range(Transmission Range TR)and the signal receiving range(Receiving Range RR)and MCS network node distribution,the network-wide communication boundary logic Division.Through the adaptive clustering processing,the number of links between nodes in the MCS network is reduced in order to reduce the network delay,reduce the communication interference between nodes and reduce the average energy consumption of the network.The simulation results show that the ACRNG algorithm can effectively reduce the communication interference caused by too many communication links and reduce the total energy consumption of the network,and improve the communication efficiency and extend network survival time and communication efficiency of the whole network node in comparison with the nonregional topology optimization scheme.2.Based on the analysis of CBTC algorithm,this paper proposes a topology control optimization scheme based on CBTC algorithm.Based on the analysis of CBTC algorithm,this paper puts forward the characteristics of signal transmission and acceptance as the main features,combined with the location information of the communication node,the logical area of nodes in the link connection The solution can optimize the quality of the communication link and improve the real-time validity of the link.Compared with the full-angle signal radiation and transmission,the scheme can effectively reduce the energy consumption of the communication link and reduce the complexity of the network topology,Thus reducing the communication interference between nodes,effectively improving the communication efficiency of the node,in maintaining the effectiveness of the network link to play a better effect.In this paper,the concept of node connectivity is used to describe and reflect the network topology node connectivity and network complexity.The planar MCS network is used as the main content of the research.Combining with the two optimization schemes,the simulation experiment is compared with the traditional topology The advantages and disadvantages of the proposed scheme are analyzed,and the exploration direction of MCS topology control is provided.