TCHCS: Free Space Optical and RF Wireless Hybrid Communication: Information Theoretic Models, Analysis and Fundamental Performance Limits

ECS-0636613P。纳拉扬，马里兰大学帕卡斯大学帕卡斯无线射频(RF)通信技术的成熟和需求继续增长，同时，自由空间光学(FSO)作为一种有吸引力的通信技术稳步出现，越来越明显的是，通过以互补的方式结合其射频和无线光学组件的混合通信系统可以获得最好的整体系统性能收益。我们提出了一类新的、易于处理的无线射频与光混合通信系统的信息论模型。通过对这些新模型的理论分析，我们的主要目标是表征混合通信系统的基本性能极限，并为其组件子系统的设计和优化使用提供定性和定量的指导。智力优势：该建议的基石是对混合射频-光通信系统的新的信息论观点。这将使几个重要的经典结果和信息论的最新进展在建立混合射频-光学系统的新数学模型、表征基本性能极限以及为其操作提供新的见解和工程指导方面发挥主要作用。拟议项目的预期成果包括对混合无线射频和光通信至关重要的领域的重大创新。此外，它有可能通过引入和分析新的模型、解决基本的开放问题和信息论思想的新应用而导致信息论的重要进步。这项研究的具体目标如下：(I)利用适当的总和信道模型，开发用于混合射频-光学系统的数学建模和分析的信息论框架；(Ii)关于信道容量方面的混合系统性能的基本极限的表征，即可靠信息传输的最大码率；(Iii)基于信道条件开发用于互补使用射频和光学子系统的策略；以及(Iv)根据有关信道状况的现有信息，开发射频和光模式下的自适应信令和功率控制策略。广泛影响：拟议的项目将为研究生提供一个丰富的学习环境，学习快速崛起的无线射频和光通信系统混合技术。具体地说，技术方法的基本要素将在专题课程和研讨会中讨论；除了研究生参与硕士和博士学位水平的项目外，学生将在所开发的射频和光信号和功率控制方案的研究和性能评估中发挥主要作用。

ECS-0636613P. Narayan, University of Maryland College ParkAs wireless radio frequency (RF) communication technology continues to grow in sophistication and demand, and, at the same time, free space optics (FSO) steadily emerges as an attractive communication technology, it is becoming increasingly evident that the best possible gains in overall system performance can be reaped through a hybrid communication system which combines in a complementary manner its RF and wireless optical components. We propose a new and tractable class of information theoretic models for a hybrid wireless RF and optical communication system. Through our theoretical analysis of these new models, our prime objective is to characterize the fundamental limits of performance of the hybrid communication system, and to provide qualitative and quantitative guidelines for the design and optimal use of its component subsystems.Intellectual merit: The cornerstone of this proposal is a new information theoretic view of a hybrid RF-optical communication system. This will enable several important classical results as well as recent advances in information theory to play a primary role in formulating new mathematical models of hybrid RF-optical systems, characterizing fundamental performance limits, and offering new insights and engineering guidelines for their operation. Expected outcomes of the proposed project include significant innovations in areas of critical importance to hybrid wireless RF and optical communication. Furthermore, it has the potential of leading to important advances in information theory through the introduction and analysis of new models, solution of fundamental open problems, and new applications of information-theoretic ideas. The specific goals of this research are the following:(i) the development of an information theoretic framework for the mathematical modeling and analysis of a hybrid RF-optical system, using appropriate sum channel models;(ii) a characterization of the fundamental limits of performance of the hybrid system in terms of channel capacity, i.e., the maximum code rate of reliable information transfer;(iii) the development of strategies for the complementary use of the RF and optical subsystems based on channel conditions; and(iv) the development of adaptive signaling and power control strategies in the RF and optical modes as a function of available information on the channel conditions.Broader impacts: The proposed project will provide a rich learning environment for graduate students in the rapidly emerging technology of hybrid wireless RF and optical communication systems. Specifically, the basic elements of the technical approach will be discussed in Special Topics courses and seminars; and students will play a major role in the study and performance evaluation of the RF and optical signaling and power control schemes developed, in addition to graduate students' participation in the project at the level of M.S. and Ph.D. degrees.