Research On BDRP Routing Algorithm For Inter-device Network Based On Bluetooth Communication

With the continuous development of information technology,mobile communication technology has made significant progress.Communication is no longer limited to the backbone network or cellular network between the various devices,thus it is clear that fixed wired or wireless network has been unable to meet the needs of the current application communications.In recent years,Bluetooth as a short range wireless communication technology standards continues to improve.Bluetooth devices on the mobile phone already have low power consumption,low latency,long transmission distance and so on.So the network which is out of the backbone is to be formed through the mobile phone Bluetooth device to establish a connection,and the data transmission is no longer dependent on the backbone.The formation of the network shows a broad prospect in future application.First of all,this thesis analyzes the advantages and disadvantages between two kinds of self-organizing network routing protocols,which are active routing protocols and on-demand routing protocols.In addition,the OLSR routing protocol and the AODV routing protocol are analyzed in detail to illustrate these two types of routes.Various characteristics of the ad hoc network or multi-hop routing protocol are mentioned,but the location of these devices in the network is relatively fixed,the topology is rarely changed,and did not take into account the actual scene of mobile phone equipment.Therefore,the thesis designs a new BDRP routing protocol,which applies to the network that formed by mobile phone Bluetooth devices and is out of the backbone.Using the routing protocol in this thesis,any two devices in the network can exchange data to the extent possible,without the limitation of the fact that Bluetooth can only be transmitted over short distances.In such a network,people carry the phones,and the location is usually in the crowd,so the phone moves more frequently,the network topology changes quickly,and mobile phone Bluetooth node density is relatively large.In order to make the data reach the destination in a timely manner,the routing protocol in the network is particularly important.This thesis proposes several key mechanisms to route data,such as the Processed Data Table,and the Exclude Node With Data Packets policies and the Source Control policies to transfer data efficiently.The protocol can meet the limitations of mobile phone in terms of bandwidth,power consumption,storage space and computing power.It is suitable for networks with fast network topology changes,and the protocol itself has the characteristics of small data transmission delay and less control information.At the end of this thesis,the feasibility of the proposed routing algorithm is verified by the results of the simulator,and the influence for each condition on the performance of the routing algorithm is compared.The BDRP routing algorithm and the OLSR routing algorithm are compared.In addition,an APP for chat based on the routing protocol in this thesis is put into practice on the Android phone.Moreover,the thesis gives the next research direction.