NeTS: Small: Towards Real-Time Video Streaming in the Internet of Underwater Things

NetS：小型：迈向水下物联网中的实时视频流

• 批准号: 1422874
• 负责人: Tommaso Melodia
• 金额: $ 30万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-10-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1422874&HistoricalAwards=false
• 关键词: NeTS; Small; Towards; Real; Time

The prospect of an 'Underwater Internet' has raised significant interest among the general public because of its potential in facilitating many commercial, scientific, and military activities at sea. Still, in spite of the increased attention by the research community in the last few years, underwater networks are still in their infancy. Current state-of-the-art underwater acoustic technology can support mostly point-to-point, low-data-rate, and delay-tolerant applications. This project is attempting to advance the state of the art in underwater networking by investigating two fundamental issues. First, it is developing technology to communicate over short-range links at higher transmission rates than available today. Second, it is developing technology to integrate the newly-designed acoustic communication technology with the Internet to guarantee interoperability with existing networks. The new capabilities will be demonstrated by focusing on video streaming application scenarios for underwater surveillance. The project will integrate research and education by establishing cross-listed graduate/undergraduate courses on acoustic networking and its applications, activities to reach out to underrepresented communities, and pursuit of technology transfer activities in this field.The project proposes a paradigm shift in how information is carried over short-range acoustic links, by developing novel carrierless transmission and multiple access techniques. Short, properly designed/shaped pulses are transmitted in the ultrasonic spectral regime following an adaptive time-hopping pattern with a superimposed spreading code of variable length. The effect is nearly seamless physical/MAC layer integration, and potential for highest data rate communication by properly optimized spreading sequences. Secondary -yet important- benefits of the proposed approach are low cost and weight oscillator-free transducers and excellent receiver interference suppressing capabilities. Integration with the Internet is being pursued by means of an adaptation layer that acts as an interface between higher-layer protocols and the underwater links by performing header compression, packet fragmentation, and creation of a virtual common broadcast space.

“水下互联网”的前景引起了公众的重大兴趣，因为它有潜力促进海上许多商业，科学和军事活动。尽管如此，尽管在过去几年中，研究界的关注越来越大，但水下网络仍处于起步阶段。当前的最新水下声学技术可以主要支持点对点，低数据速率和延迟耐受性的应用。该项目试图通过调查两个基本问题来推动水下网络中的最新技术。首先，它正在开发技术，以比今天的传输速率更高的传输速率进行短程交流。其次，它正在开发技术，以将新设计的声学通信技术与互联网整合在一起，以确保与现有网络的互操作性。新功能将通过关注视频流应用程序方案进行水下监视来证明。该项目将通过建立有关声学网络及其应用程序的跨列表的研究生/本科课程来整合研究和教育，以接触不足的社区，并追求该领域的技术转移活动。该项目提出，通过开发短距离声音链接的信息通过开发新型的播音方式和多种型号的多种式传播技术来改变信息的范式转变。短，正确设计/形状的脉冲是在自适应时弹模式后以可变长度叠加的扩散代码的自适应时光频谱状态传播的。该效果几乎是无缝的物理/MAC层集成，并且通过正确优化的扩散序列进行了最高数据速率通信的潜力。拟议方法的次要 - 基因是低成本和无振荡器的换能器和出色的接收器干扰抑制功能。通过一个适应层来追求与Internet的集成，该适应层通过执行标头压缩，数据包碎片和创建虚拟通用广播空间来充当高层协议与水下链路之间的接口。