NeTS: Small: Low Latency Uplink Communications in Low Earth Orbit (LEO) Satellite Networks with Chirp Permutation Multiple Access (CPMA)

NeTS:小型:低地球轨道 (LEO) 卫星网络中采用线性调频排列多址 (CPMA) 的低延迟上行链路通信

基本信息

  • 批准号:
    2312113
  • 负责人:
  • 金额:
    $ 55万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2023
  • 资助国家:
    美国
  • 起止时间:
    2023-10-01 至 2026-09-30
  • 项目状态:
    未结题

项目摘要

In this project, Chirp Permutation Multiple Access (CPMA) is proposed, which is a novel wireless communication technology for Low-Earth-Orbit (LEO) satellite networks aiming at achieving minimum communication latency on the uplink from the user terminals to the satellite. LEO satellite networks have emerged as a strong option to complement the existing wireless infrastructure, especially for providing broadband data services to areas that are traditionally difficult to reach, such as rural areas and oceans. CPMA addresses one of the key challenges in LEO satellite networks, namely, the communication latency, and will enable applications that are highly sensitive to latency, such as automatic driving and gaming. CPMA minimizes latency by reducing it to the one-way propagation delay from the user terminal to the satellite, because CPMA allows user terminals to transmit packets at any time without coordinating with each other or waiting for decisions on resource allocations. By enabling novel applications, CPMA will benefit society and improve quality of life. This project will advance the knowledge and understanding on grant-free communications in wireless networks. Results from this project will be integrated with education, such as used in course projects. Undergraduate students and students from underrepresented and minority groups will be actively recruited.The key novelty of CPMA is its physical layer, which allows the satellite to decode overlapping packets from multiple user terminals and enables grant-free communications over the uplink. The CPMA modulates data by transforming the chirp waveform, which is a complex vector with constant magnitude and linearly increasing frequency. The key transformation is the permutation of the chirp, which can effectively reduce the impact of interference across packets. In this project, both the physical layer and the link layer of CPMA will be designed, implemented, and tested. The physical layer will be optimized with permutations with proven guarantees and multiple types of transformations of the chirp. The link layer will fully harness the capabilities of the physical layer and solve problems such as efficient packet retransmission and transmission power control based on collective feedback from multiple user terminals close to each other. Theoretical analysis will be conducted to reveal the network capacity and prove the optimality of the design. CPMA is expected to achieve ultra-low latency, high data rate, and high network capacity. CPMA will be implemented on USRPs and demonstrated in open platforms such as POWDER, as well as evaluated with simulations driven by channel traces and widely accepted channel models.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
在本项目中,提出了线性调频置换多址(CPMA),这是一种新的低地球轨道(LEO)卫星网络无线通信技术,旨在实现从用户终端到卫星的上行链路上的最小通信延迟。低轨卫星网络已成为补充现有无线基础设施的有力选择,特别是在向农村地区和海洋等传统上难以到达的地区提供宽带数据服务方面。CPMA解决了LEO卫星网络的关键挑战之一,即通信延迟,并将支持对延迟高度敏感的应用,如自动驾驶和游戏。CPMA通过将其减少到从用户终端到卫星的单向传播延迟来最小化延迟,因为CPMA允许用户终端在任何时间发送分组,而无需彼此协调或等待关于资源分配的决定。通过实现新的应用,CPMA将造福社会,提高生活质量。该项目将促进对无线网络中免赠款通信的了解和理解。该项目的成果将与教育相结合,例如用于课程项目。将积极招募本科生和来自代表性不足和少数群体的学生。CPMA的关键创新之处在于其物理层,它允许卫星解码来自多个用户终端的重叠分组,并允许在上行链路上进行免补贴通信。CPMA通过对线性调频波形进行变换来调制数据,线性调频波形是一个幅值恒定、频率线性增加的复矢量。关键的变换是线性调频信号的置换,可以有效地减少分组间干扰的影响。在本项目中,将对CPMA的物理层和链路层进行设计、实现和测试。物理层将通过具有可靠保证的排列和多种类型的线性调频变换进行优化。链路层将充分利用物理层的能力,并基于来自彼此邻近的多个用户终端的集体反馈来解决有效的分组重传和传输功率控制等问题。将进行理论分析,以揭示网络容量并证明设计的最优性。CPMA有望实现超低时延、高数据速率和高网络容量。CPMA将在USRP上实施,并在FORDER等开放平台上进行演示,以及通过渠道跟踪和广泛接受的渠道模型驱动的模拟进行评估。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。

项目成果

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Zhenghao Zhang其他文献

A parallel programming framework with Markovian messaging for LC-MS peptide detection
用于 LC-MS 肽检测的马尔可夫消息传递并行编程框架
ParEst: joint estimation of the OFDM channel state information in MIMO systems
Critical layer thickness in Stranski-Krastanow growth of Ge on Si(001) [rapid communication]
Si(001) 上 Ge 的 Stranski-Krastanow 生长的临界层厚度 [快速通讯]
  • DOI:
    10.1016/j.susc.2004.06.149
  • 发表时间:
    2002
  • 期刊:
  • 影响因子:
    0
  • 作者:
    K. Varga;L. Wang;S. Pantelides;Zhenghao Zhang
  • 通讯作者:
    Zhenghao Zhang
Novel PRACH Scheme for 5G Networks Based on Analog Bloom Filter
基于模拟布隆过滤器的 5G 网络新型 PRACH 方案
Insights into the fracture behavior of multi-scale fiber reinforced ultra-high performance cementitious composites after exposure to high temperatures
高温暴露后多尺度纤维增强超高性能水泥基复合材料断裂行为的洞察
  • DOI:
    10.1016/j.tafmec.2025.104896
  • 发表时间:
    2025-08-01
  • 期刊:
  • 影响因子:
    5.600
  • 作者:
    Yao Zhang;Zhenghao Zhang;Weigang Zhao;Guowen Sun;Zhiguo Yan;Hehua Zhu;J. Woody Ju
  • 通讯作者:
    J. Woody Ju

Zhenghao Zhang的其他文献

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{{ truncateString('Zhenghao Zhang', 18)}}的其他基金

CNS Core: Small: Supporting Massive Wireless Connections in the Internet-of-Things (IoT) with Multiple Zadoff-Chu (MZC) sequences
CNS 核心:小型:通过多个 Zadoff-Chu (MZC) 序列支持物联网 (IoT) 中的大规模无线连接
  • 批准号:
    1910268
  • 财政年份:
    2019
  • 资助金额:
    $ 55万
  • 项目类别:
    Standard Grant
NeTS: Small: Theory and Applications of Sparse Approximations of the Channel State Information in Wi-Fi Networks
NeTS:Small:Wi-Fi 网络中信道状态信息稀疏近似的理论与应用
  • 批准号:
    1618358
  • 财政年份:
    2016
  • 资助金额:
    $ 55万
  • 项目类别:
    Standard Grant
CAREER: Addressing Fundamental Challenges for Wireless Coverage Service in the TV White Space
职业:解决电视空白区无线覆盖服务的基本挑战
  • 批准号:
    1149344
  • 财政年份:
    2012
  • 资助金额:
    $ 55万
  • 项目类别:
    Standard Grant
SHF: Small: Collaborative Research: Ultra Low Latency Optical Packet Switched Interconnects with Novel Switching Paradigm
SHF:小型:协作研究:具有新颖交换范式的超低延迟光分组交换互连
  • 批准号:
    0915495
  • 财政年份:
    2009
  • 资助金额:
    $ 55万
  • 项目类别:
    Standard Grant

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NeTS:小型:RUI:Bulldog Mote - 无线传感器网络的低功耗传感器节点和设计方法
  • 批准号:
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NetS:小型:协作研究:实现物联网的低成本、便捷、非侵入性方法
  • 批准号:
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NetS:小型:协作研究:实现物联网的低成本、便捷、非侵入性方法
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