基于蓝牙通讯的设备间网络BDRP路由算法研究

发布时间：2018-08-29 16:54

【摘要】：随着信息化的不断发展,移动通讯技术发展迅猛,各个设备之间的通讯方式已经不再局限于主干网络或者蜂窝网络,固定的有线或无线网络已经不能满足现在应用通讯的需求。蓝牙作为一种开放性的短距离无线通信技术标准在最近几年不断完善,手机上的蓝牙设备已经具有低功耗、低延时、传输距离长等等特性,因此通过手机蓝牙设备建立连接,形成一个脱离于主干网的网络,数据的传输不再依赖主干网。这样形成的网络展现出广阔的应用前景。首先本文分析了目前比较关键的两种自组网路由协议类型的优缺点,主动路由协议和按需路由协议。另外,详细分析OLSR路由协议和AODV路由协议来说明这两类型路由。分析发现目前有各种特点的自组网或多跳网络的路由协议被提及,但是基本都是网络中设备位置相对固定,拓扑图很少变化的情况,并且也没有考虑到手机设备的具体场景。本文提出了一种全新的BDRP路由协议,该协议适用于将手机蓝牙设备作为通信基础形成的脱离主干网的网络。利用本文的路由协议,条件允许的情况下在该网络中任意两个设备都可以进行数据交换,而不用受限于目前蓝牙只能短距离传输的情况。在这样的网络中,因为手机一般都是人随身携带,并且所处的位置通常都在人群中,所以手机跟随人移动的比较频繁,网络的拓扑图变化很快,手机蓝牙节点比较密集。为了让数据能及时的正确的到达目的地,网络中的路由协议就突显的尤为重要。本文路由协议提出了几个关键的机制来路由数据,比如已处理数据表机制、借助数据包排节点策略、回源控制策略等办法来高效率的传输数据。该协议能够满足手机在带宽、功耗、存储空间以及计算能力等方面的限制,并且适用于网络拓扑变化快等情况,同时协议自身也有数据传输延迟小、控制信息少等特点。本文最后通过开发的模拟器模拟路由算法的结果,验证了本文的路由算法的可行性,并对比了各个条件对路由算法性能的影响。同时把BDRP路由算法和OLSR路由算法做了对比。另外基于本文的路由协议在Android手机上实现了一个APP用于文字语言聊天,并进行的实测。同时最后给出下一步的研究方向。
[Abstract]:With the continuous development of information technology, the rapid development of mobile communication technology, the communication between the various devices is no longer confined to the backbone network or cellular networks, fixed wired or wireless networks can no longer meet the needs of current applications. Bluetooth, as an open short-range wireless communication technology standard, has been continuously improved in recent years. Bluetooth devices on mobile phones have the characteristics of low power consumption, low delay, long transmission distance and so on. Form a network separated from the backbone network, data transmission is no longer dependent on the backbone network. The network formed in this way shows a broad application prospect. Firstly, this paper analyzes the advantages and disadvantages of two key ad hoc routing protocols, active routing protocol and on-demand routing protocol. In addition, the OLSR routing protocol and the AODV routing protocol are analyzed in detail to illustrate the two types of routing. It is found that the routing protocols of ad hoc networks or multi-hop networks with various characteristics are mentioned, but the location of devices in the network is relatively fixed, the topology diagram is seldom changed, and the specific scenarios of mobile devices are not taken into account. In this paper, a new BDRP routing protocol is proposed, which is suitable for the network which is separated from the backbone network based on Bluetooth devices. Using the routing protocol in this paper, any two devices in the network can exchange data under the condition of condition, without limiting the Bluetooth transmission only in short distance. In such a network, because the mobile phone is usually carried by people and the location is usually in the crowd, the mobile phone moves with people more frequently, the topology of the network changes rapidly, and the Bluetooth nodes of the mobile phone are relatively dense. In order to get the data to the destination in time, the routing protocol in the network is especially important. In this paper, several key mechanisms are proposed to route data, such as data table mechanism, packet routing strategy, source control strategy and so on. The proposed protocol can meet the limitations of bandwidth, power consumption, storage space and computing power of mobile phones, and is suitable for fast network topology changes. At the same time, the protocol itself has the characteristics of low data transmission delay and less control information. Finally, the feasibility of the proposed routing algorithm is verified by simulating the routing algorithm by the simulator developed in this paper, and the effects of various conditions on the performance of the routing algorithm are compared. At the same time, the BDRP routing algorithm and the OLSR routing algorithm are compared. In addition, based on the routing protocol of this paper, a APP for text language chat is implemented on Android mobile phone. At the same time, the next research direction is given.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN925

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