频谱感知随遇接入技术的半实物仿真

发布时间：2018-04-30 20:37

本文选题：随遇接入技术 + 半实物仿真　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：目前,网络种类繁多,具备一种网络接入机制的节点只能接入该网络中进行通信,若离开该网络的覆盖范围,即使处于其他网络中,仍然无法使用。通过引入随遇接入技术就能很好地解决这个问题。在随遇节点中具备多种网络接入机制,能根据网络环境实时切换并接入网络进行通信,保证通信质量,提升网络接入的便捷性和灵活性。本文在研究OPNET中半实物仿真和认知无线电中频谱感知的基础上,设计了随遇接入技术。首先它在随遇节点中使用了多种网络接入机制,通过频谱感知技术感知环境中的网络,进而接入网络进行通信,并且还能动态切换信道以保证通信质量;其次将随遇接入技术采用半实物仿真方法实现,极大地扩展了仿真规模,降低了仿真难度,为解决复杂的仿真问题提供方法;最后通过仿真结果验证了方案的可行性和性能。
[Abstract]:At present, there are many kinds of networks, the nodes with a network access mechanism can only access the network to communicate, if leave the coverage of the network, even in other networks, still can not be used. This problem can be solved very well by the introduction of incidental access technology. There are many kinds of network access mechanisms in the random nodes, which can switch and access the network in real time according to the network environment, ensure the communication quality, and improve the convenience and flexibility of the network access. Based on the research of hardware-in-the-loop simulation in OPNET and spectrum sensing in cognitive radio, this paper designs an on-demand access technology. First, it uses a variety of network access mechanisms in the encounter node, through spectrum sensing technology to sense the network in the environment, and then access to the network for communication, and can also dynamically switch channels to ensure the quality of communication; Secondly, the in-case access technology is realized by using the hardware-in-the-loop simulation method, which greatly expands the scale of simulation, reduces the difficulty of simulation, and provides a method for solving complex simulation problems. Finally, the feasibility and performance of the scheme are verified by simulation results.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN915.6

【相似文献】