根据有无固定基础设施,无线局域网又可分为BSS (Basic Service Set)和IBSS (Independent Basic Service Set)。我们要研究的ad hoc网络属于后者。假设在一个ad hoc网络中,移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道,测量接收到的信号功率X,其中X= I + N, I为接收到的干扰,N是噪声。移动节点只有在X<INThre时,才可以发射。式中,INThre为背景噪声门限。 在仿真中,我们规定每个移动节点的发射功率是常数,PTx = 1W;接收节点接收机的灵敏度Smin = -80 dBm;信号质量 min = 2 dB;系统的背景噪声门限INThre = 1.2e-10。
标签:
上传时间: 2013-12-19
上传用户:顶得柱
AODV协议实现,嵌入式Linux平台,实现ad hoc网络功能
上传时间: 2013-12-04
上传用户:coeus
Host Identity Protocol on Linux is an implemetation of the Host Identity Protocol (HIP) and the related architecture. HIP is a proposal to change the TCP/IP stack to securely support mobility and multi-homing. Additionally, it provides for enhanced security and privacy and advanced network concepts, such as moving networks and mobile ad hoc networks. HIP is "cool", which means that as a mobile VPN solution, when your network interfaces go up or down, there is no need to re-establish a secure tunnel.
标签: Identity Protocol Host implemetation
上传时间: 2016-09-01
上传用户:皇族传媒
无线网状网是一种高速率、高容量的多点对多点网络,可把它看成是Ad hoc网络的简化版本。正如Ad Ho。网络一样,无线网状网中的路由是它的一项关键技术。基于此,本论文对无线网状网的路由协议进行研究。 文中首先介绍了无线网状网的结构,特点以及其发展与现状 其次,分析了Ad hoc网络中各种路由协议的优劣 再次,重点研究了其中的一种动态源路由协议(DSR)的具体实现过程 在DSR的基础上,对其进行改进,提出了一种均衡流量动态源路由协议,对它进行性能分析和仿真。
上传时间: 2016-11-07
上传用户:waizhang
由于无线链路和拓扑结构的时变特性,Ad hoc网络的优化设计面临挑战.为解决这个难题,提出了跨层设计的方法.叙述了Ad hoc网络跨层设计的概念,介绍了基于跨层方法的一些路由设计思想.提出了跨层路由设计中存在的问题和研究方向.
上传时间: 2013-11-28
上传用户:问题问题
有关C的一段网络相关实例,对Ad hoc的AODV路由协议在OPNET下进行程序仿真
标签: 网络
上传时间: 2014-01-10
上传用户:lunshaomo
These mobility generator tools are used to generate a rich set of mobility scenarios used to evaluate the protocol performance in Mobile Ad hoc Network. The tools include the Reference Point Group Mobility(RPGM) model, Freeway Mobility Model and Manhattan Mobility Model.
标签: mobility used generator scenarios
上传时间: 2017-07-05
上传用户:ANRAN
In the next generation of wireless communication systems, there will be a need for the rapid deployment of independent mobile users. Significant examples include establishing survivable, efficient, dynamic communication for emergency operations, disaster relief efforts, and military networks. Such network scenarios cannot rely on centralized and organized connectivity, and can be conceived as applications of mobile ad hoc networks. A MANET is an autonomous collection of mobile users that communicate over relatively bandwidth constrained wireless links. Since the nodes are mobile, the network topology may change rapidly and unpredictably over time. The network is decentralized, where all network activity including discovering the
标签: communication generation the wireless
上传时间: 2014-01-07
上传用户:cuibaigao
In the next generation of wireless communication systems, there will be a need for the rapid deployment of independent mobile users. Significant examples include establishing survivable, efficient, dynamic communication for emergency operations, disaster relief efforts, and military networks. Such network scenarios cannot rely on centralized and organized connectivity, and can be conceived as applications of mobile ad hoc networks. A MANET is an autonomous collection of mobile users that communicate over relatively bandwidth constrained wireless links. Since the nodes are decentralized, where all network activity including discovering the
标签: communication generation the wireless
上传时间: 2014-01-04
上传用户:tedo811
在充分研究了超宽带无线传输技术特性的基础上, 对超宽带无线定位的原理进行了探讨。首先详细介绍了超宽带测距和定位的原理, 对超宽带定位的精度进行了仿真分析。然后, 针对超宽带 Ad hoc 网络实际应用中节点数目比较多的情况, 引入了节点的相关性来提高超宽带的定位精度, 并进行了仿真分析。仿真结果显示了此算法在网络节点数比较多的情况下对定位精度有比较好的提高效果。
标签: UWB定位算法
上传时间: 2015-04-19
上传用户:hyc77