Location-aware Secutiry and Privacy in 5G Wireless Networks

下一代无线网络，被称为5G，提供更高的带宽，更低的延迟和更好的连接，支持数十亿互连通信节点，从用户设备到传感器和自动机器。下一代无线服务的三个主要推动因素是被称为HetNet的异构（多层）网络、毫米波（mmWave）无线电频谱和毫米波的大规模多输入多输出（MIMO）天线。在这种环境中提供安全和信任虽然至关重要，但尤其具有挑战性，因为恶意节点能够提供虚假身份，并窃听、操纵和干扰通信。5G系统中节点面临的主要安全挑战是：(i)确定要连接的可信任节点，（ii）确保通信的机密性和可靠性，以及对服务的安全访问。无线系统的物理层特性为系统设计人员提供了丰富的资源，以可承受的成本增强通信的安全性和保密性，补充了在通信堆栈的更高层提供的加密安全性。该项目的目标是使用节点的位置相关信息来增强安全访问。与位置相关的信息可以通过利用大规模MIMO和波束形成等技术来安全实现，这些技术将在未来的网络中广泛使用，并通过验证节点的位置信息来显著增强对节点声称的身份及其访问请求的信任。我们的研究将有两个互补的方面：-发展理论，模型和技术，提供可信赖的位置相关信息，并利用这些信息来保证安全访问服务；-开发通信技术，包括毫米波的大规模MIMO，编码和调制，以实现和实验验证理论结果，在实践中。

The next generation wireless networks, dubbed 5G, provide higher bandwidth, lower latency, and better connectivity, supporting billions of interconnected communicating nodes, ranging from devices of a user, to sensors and autonomous machines. Three main enablers of the next generation wireless services are the heterogeneous (multi-tier) networks known as HetNet, millimetre wave (mmWave) radio spectrum, and massive multiple-input multiple-output (MIMO) antennas at mmWave. Providing security and trust in this environment while crucial, is particularly challenging because of the ability of malicious nodes to present fake identities, and eavesdrop, manipulate and jam the communication. The primary security challenges facing a node in a 5G system are: (i) identifying trustable nodes to connect to and, (ii) ensuring confidentiality and reliability of communication, and secure access to services. Physical layer properties of wireless systems provide a rich set of resources for system designers to enhance security and privacy of communication at affordable cost, complementing cryptographic security that are provided at the higher layer of communication stack. The goal of this project is to use the location-related information of the node for enhancing secure access. Location-related information can be securely realized by tapping into technologies such as massive MIMO and beam forming, that will become widely available in future networks, and be used to can significantly enhance trust on nodes' claimed identities and their access requests, by verifying their location information. Our research will have two complementary prongs:-- Developing theories, models and techniques for providing trustable location-related information, and employing this information to guarantee secure access to services;-- Developing communication technologies including massive MIMO at mmWave, coding and modulation to implement and experimentally validate the theoretical results, in practice.