CAREER: Joint Power-Allocation and Diversity (JPAD) Optimization for Networked Underwater Acoustic Transceivers

职业：网络化水下声学收发器的联合功率分配和分集 (JPAD) 优化

• 批准号: 0846486
• 负责人: Yahong Zheng
• 金额: $ 40万
• 依托单位: Missouri University of Science and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0846486&HistoricalAwards=false
• 关键词: CAREER; Joint; Power; Allocation; Diversity

The objective of this research is to design networked underwater acoustic transceivers to achieve high network throughput and high reliability for shallow water sensor networks. The approach is to maximize the power and bandwidth efficiency through a joint power allocation and diversity (JPAD) optimization method combined with adaptive medium access control (MAC) and multiple-input multiple-output (MIMO) schemes. The research is integrated with education and outreach through two new courses that bridge curricula gaps between networking and communications and between signal processing and circuit design, student training for underwater research, and collaboration with the Women's Leadership Institute and the Summer Research Academy at the Missouri University of Science and Technology.With respect to intellectual merit, this project contributes to boosting network capacity and reliability for underwater communications through two major paradigm shifts: optimization with practical discrete inputs rather than idealized Gaussian inputs to improve transceiver design and using joint power-allocation and diversity matrices instead of scheme using only adaptive power allocation. The design methodologies developed for underwater communications in this project should also be applicable to radio frequency (RF) communication.With respect to broader impact, the project has the potential to advance the development of underwater sensor networks and enhance capabilities for environmental monitoring, disaster prevention, offshore exploration, and surveillance. The education and outreach activities help to train the next generation of researchers, increase the participation of women and other students from underrepresented groups, advocate responsible engineering approaches for reducing sound pollution in oceans, and educate the general public about the impact of acoustic communications and sensor networks in aquatic environments.

本研究的目的是设计网络化的水声收发器，以实现高网络吞吐量和高可靠性的浅水传感器网络。 该方法是通过联合功率分配和分集（JPAD）优化方法结合自适应媒体访问控制（MAC）和多输入多输出（MIMO）计划，以最大限度地提高功率和带宽效率。 这项研究通过两门新课程与教育和外联相结合，这两门课程弥合了网络和通信之间以及信号处理和电路设计之间的课程差距，对学生进行水下研究培训，并与密苏里州科技大学的妇女领导力研究所和夏季研究学院合作。该项目通过两个主要的模式转变，有助于提高水下通信的网络能力和可靠性：使用实际离散输入而不是理想化的高斯输入进行优化，以改进收发器设计，并使用联合功率-分配和分集矩阵来代替仅使用自适应功率分配的方案。 本项目为水下通信开发的设计方法应同样适用于射频（RF）通信。就更广泛的影响而言，本项目有可能促进水下传感器网络的发展，提高环境监测、防灾、近海勘探和监视的能力。 教育和外联活动有助于培训下一代研究人员，增加妇女和其他来自代表性不足群体的学生的参与，倡导采取负责任的工程方法减少海洋声音污染，并教育公众了解声学通信和传感器网络对水生环境的影响。