An Intelligent Interference-Aware Wireless Network

智能干扰感知无线网络

• 批准号: 710023
• 金额: $ 7.59万
• 依托单位: SWANMESH NETWORK LTD
• 依托单位国家: 英国
• 项目类别: GRD Proof of Concept
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=710023
• 关键词: Intelligent; Interference; Aware; Wireless; Network

Wireless networks are deployed at a fast pace to provide services for broadband Internet access, security surveillance, and healthcare. These networks give users the mobility and flexibility to receive services wherever they are. However, the over-crowded networks cause interference to each other that degrades the performance of the network, leading to slower download speed, disconnecting the users from the networks, and errors in transmitted data.One method to avoid the interference is to allow the network to operate on less crowded frequency band by manually configuring the network before or after the deployment. However, the manual configuration needs special skills and sometimes is not applicable because of complex environment where interference signals are from other resources too. Therefore an intelligent interference-aware network is highly demanded where the network can reconfigure itself adaptive to the environmental change.The objective of this project is to develop such an intelligent network. To enable the intelligence of the network, the first step is to sense the environmental signals to find out where the interference is from and which frequency bank the network can operate on. This project will develop an advanced spectrum sensing technology based on compressed sensing, which can sense the wideband signals by acquiring the samples at a less than Nyquist rate. This will reduce the data to be processed, and thus reduce the consumption of the energy. The second step is the reconfiguration of the network by software defined radio technology. When new data transmission method is required, new software could be downloaded from a dedicated server. The their step is to develop a distributed software downloading and management system to update the software when necessary. By these three technologies, the developed network will be sustainable and interference free. This is very useful in data sensitive applications, such as healthcare and military.

无线网络正在快速部署，以提供宽带互联网接入、安全监视和医疗保健服务。这些网络为用户提供了移动性和灵活性，无论他们身在何处都可以接受服务。但是，过度拥挤的网络会相互干扰，导致网络性能下降，导致下载速度变慢，用户无法连接网络，传输数据错误。避免干扰的一种方法是通过在部署前或部署后手动配置网络，使网络在不太拥挤的频段上运行。但是，手动配置需要特殊的技能，有时由于环境复杂，干扰信号也来自其他资源，因此不适用手动配置。因此，需要一种智能干扰感知网络，使网络能够根据环境的变化进行自我配置。这个项目的目标就是开发这样一个智能网络。为了实现网络的智能化，首先要对环境信号进行感知，找出干扰来自哪里，以及网络可以在哪个频带上运行。本项目将开发一种基于压缩感知的先进频谱感知技术，通过以低于奈奎斯特的速率获取样本来感知宽带信号。这将减少需要处理的数据，从而减少能源的消耗。第二步是利用软件定义无线电技术对网络进行重构。当需要新的数据传输方式时，可以从专用服务器下载新的软件。他们的步骤是开发一个分布式软件下载和管理系统，以便在必要时更新软件。通过这三种技术，发达的网络将是可持续的和无干扰的。这在数据敏感的应用程序（如医疗保健和军事）中非常有用。