CIF: Small: Cooperative Interference Engineering for Network Secrecy

交换秘密信息、保证隐私和提供真实性的能力构成了当今信息社会中信任的基础。与有线通信相比，使用无线媒体由于其广播性质，很容易被窃听。为了克服这一挑战，必须利用无线传播介质的固有特性。利用这些属性的一个关键观察是，广播性质产生了对比效果：它使来自某个合法发射机的保密信息容易受到恶意拦截，但同时，它使其他合法合作伙伴能够通过干扰阻碍窃听接收器的能力。然而，干扰对窃听接收机和合法接收机的并发影响尚未得到深入研究。这就需要仔细研究如何设计网络干扰，以充分利用其无线保密的潜力。该项目旨在开发协作干扰工程策略，协调多个合法合作伙伴的传输和接收，以产生理想的聚合干扰，以实现无线保密保护。新技术将被设计成既能阻碍窃听者的能力，又对合法的接收者几乎没有影响。具体而言，本研究旨在：(1)描述用于控制注入无线网络的聚合干扰的协同干扰工程的基本限制；(2)为协同干涉工程技术的设计奠定理论基础；(3)评价协同干扰工程技术的性能及其对网络保密的好处。该研究结合了通信、信息、代数几何和随机几何等多种理论，为设计具有新水平保密保护的无线网络奠定了基础。

The ability to exchange secret information, to guarantee privacy, and to provide authenticity forms the basis for trust in today's information society. In contrast to communications via wires, the use of a wireless medium is highly susceptible to eavesdropping due to its broadcast nature. To overcome this challenge, it is imperative to exploit the intrinsic properties of the wireless propagation medium. A key observation for exploiting such properties is that the broadcast nature generates contrasting effects: it makes the secrecy information from a certain legitimate transmitter vulnerable to malicious interception, but at the same time, it enables other legitimate partners to impede the capability of eavesdropping receivers via interference. However, the concurrent effect of interference on both eavesdropping receivers and legitimate receivers has not been thoroughly investigated. This calls for research on carefully engineering the network interference to fully harness its potential for wireless secrecy. This project aims at developing cooperative interference engineering strategies that coordinate the transmission and reception of multiple legitimate partners to generate desirable aggregate interference for wireless secrecy protection. New techniques will be designed to impede the eavesdropper's capability while having little effect on the legitimate receivers. Specifically, this research aims to: (1) characterize the fundamental limit of cooperative interference engineering for controlling the aggregate interference injected into a wireless network; (2) set up a theoretical foundation for the design of cooperative interference engineering techniques; and (3) evaluate the performance of cooperative interference engineering techniques and their benefits to network secrecy. The proposed research combines various theories in communication, information, algebraic geometry, and stochastic geometry, serving as a foundation for the design of wireless networks with a new level of secrecy protection.