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Ad hoc模式的家庭网络无线通信系统的研究及实现
Research and Realization of Wireless Communication System in Ad hoc Model-based Home Network
【作者】 王孝丰;
【导师】 刘军民;
【作者基本信息】 大连理工大学 , 通信与信息系统, 2006, 硕士
【摘要】 随着Internet技术的发展,尤其是无线网络技术的发展,智能家庭网络(IHN, Intelligent Home Networks)的组网模式呈现出多样性。随时随地控制家电是IHN发展的最终趋势,而家庭网络的发展模式也呈现出多样性。如何协调好家庭网络中各个智能设备之间的关系并方便的进行控制,已成为家庭网络发展中必然遇到的问题。 本文通过对无线网络中Ad hoc技术的研究,并结合当前家庭网络的发展,提出了一种基于Ad hoc模式的无线多跳蜂窝家庭网络拓扑结构。在由多个蜂窝子网组成的家庭网络中,家庭中的设备都可以看作一个可以自由加入和离开网络的节点,所有的节点被明确的分为两种类型:移动基础节点(Mobile Base Node, MBN)和移动从节点(MSN, Mobile Slave Node)。MBN由可以工作在基础结构模式、LAN接口、WLAN等模式下的接入点(Access Point)组成,除了自身的功能以外,还具有数据转发的功能,而安装有无线模块的MSN只能通过与其相连的MBN与外界通信。这种模式的家庭网络与传统的无线网络的显著区别是网络中信息的传播依靠设备节点中继完成,可以实现信息的远距离无线传播。由此可以看出由多个子网组成的网络是一种分布式的结构,从而非常适合远距离控制。 基于ARM9平台的硬件资源,引入嵌入式操作系统来实现Ad hoc网络及对网络家电的管理。Linux是一种免费的嵌入式网络操作系统,其内核包含TCP/IP协议栈,可以满足Ad Hoc无线网络之间以及与Internet互联互通的需要。因此,选择Linux作为系统的资源管理平台,同时用户可以通过操作图形用户界面来实现所需要的功能。 本文详细阐述了ARM9硬件平台的搭建、Linux的移植、外设接口以及无线网络模块驱动程序的编写。作为研究与实现的重点,在编写Linux下无线模块网络驱动的基础上,采用AODV(Ad hoc按需距离矢量路由协议)路由协议实现了Linux下Ad hoc模式的无线家庭网络结构。最后采用ARM9+Linux平台设计了智能家庭网络管理系统终端。
【Abstract】 With the development of Internet, especially the development of wireless technology, the set model of IHN (Intelligent Home Networks) has become various. The method of wireless accessing Internet whereven and whenever is the ultimate tendency of IHN development, and the development of home network also shows its diversity. How to coordinate the relationships among the intelligent devices in home network and how to control devices conveniently have become a problem which must be dealt with in the home network development.Through the research of Ad hoc technology and the development of home network, this thesis provides the design of an Ad hoc Model-based Architecture of IHN. In this system which basic network is composed of servel cellular subnet, the device (node) in the home network can join and leave the network freely. Nodes in this network are distinctly divided into two types: Mobile Base Node (MBN) and Mobile Slave Node (MSN). The MBN consists of a combination of an AP that operates in the infrastructure mode, LAN interface, and WLAN card. The MSN, which uses a wireless module, can only communicate with other nodes via its associated MBN. Besides its own function, the MBN node (device) in subnet has an additional ability of working as a router.The most distinction between ad hoc wireless network and traditional wireless network is that the fromer deals with the forwarding and handling the information by network nodes. So the network is made of a full-distributed structure, which is suitable for the control of far distance.Based on the hardware of ARM9 platform, we introduce an operation system to realize the Ad hoc network and manage the home device. Linux is an embedded operation system we can get it freely, its kernel include TCP/IP protocol which can satisfy the demand of connection between Ad hoc network and Internet. So we select Linux as the source manage platform. When Linux start, the router pogram could be run automatically by Linux, and the user can control the home device by the GUI interface meantime.The thesis has described the build of ARM9 hardware platform, porting of Linux and programming drivers of peripheral equipment and wireless network module in details. As the emphases of research and realization, based on drivers of wireless module under Linux, we realized the structure of Ad hoc model-based wireless home network which introducedAODV (Ad hoc On-Demand Vector) routing protocol. In this paper, we design the wireless home network and the terminal grounded on Linux and ARM9.
【Key words】 Embedded Linux; Home Network; AODV; Ad hoc; Linux Porting;
- 【网络出版投稿人】 大连理工大学 【网络出版年期】2006年 04期
- 【分类号】TN929.5
- 【下载频次】398