Cooperative Wireless Networking for Secure and Optimized Transmission of Non-Gaussian Source Signals

目的：本项目的目标是针对实际源信号开展无线协作网络的综合设计和优化。与传统的基于理想化高斯输入假设的方法不同，该方案充分考虑了有限字母输入信号的实际约束和数据安全防窃听的考虑。这项研究的基本性质应该会在无线网络、优化和物理层安全方面带来新的发现。技术优势：技术优势在于通过关注来自有限字母源的实际输入信号，开发和优化适用于各种无线多天线配置的新型集成传输预编码器和接收器，包括协作和窃听通道。这项研究强调了协作多天线、多用户协作系统和分组重传分集方案等无线配置的有效设计、集成和联合优化。S项目-无线系统设计集成的新方法代表了一种根本和实用的设计范式转变，真正超越了物理层和数据链路层，实现了高频谱效率、可靠性和保密性。重要的技术贡献包括在非高斯离散输入信号和不完全或不确定信道状态信息下的被动窃听下的集中式和分布式协作收发机优化以及相关的开放问题的研究。更广泛的影响：该项目的广泛影响包括新的研究方向、新的工具和可能影响其他科学和工程领域的研究和开发的结果。这些研究结果将影响未来无线服务的质量，并扩大其在服务质量、频谱效率和保密性问题至关重要的实际环境中的应用。

Objective:The objective of this project is to develop integrated design and optimization of wireless cooperative networks for practical source signals. Unlike traditional approaches based on idealized Gaussian input assumption, this project takes into full account the practical constraint of finite-alphabet input signals and data security consideration against eavesdropping. The fundamental nature of this study should lead to new discoveries in wireless networking, optimization, and PHY layer security. Technical Merit:The technical merit lies the development and optimization of novel integrated transmission precoders and receivers for various wireless multi-antenna configurations including cooperative and wiretap channels by focusing on practical input signals from finite alphabet sources. This investigation emphasizes effective design integration and joint optimization of these wireless configurations such as cooperative multi-antennas, multi-user cooperative systems, and packet retransmission diversity schemes. The project?s novel approach to wireless system design integration represents a fundamental and practical design paradigm shift that truly transcends both physical and data link layers to achieve high spectral efficiency, reliability, and secrecy. Important technical contributions include investigation of centralized and distributed cooperative transceiver optimization and relevant open problems under non-Gaussian discrete input signals and passive eavesdropping, under incomplete or uncertain channel state information. Broader Impacts:The project's broad impacts include new research directions, new tools, and results that can influence research and development in other science and engineering fields. The research findings would impact the quality of future wireless services and broaden their applications in practical environment where quality of service, spectral efficiency, and confidentiality concerns are paramount.