Collaborative Research: CIF: Medium: A Theoretical Foundation For Practical Communication with Feedback

合作研究：CIF：媒介：带反馈的实际沟通的理论基础

基本信息

批准号：
1955660
负责人：
Richard Wesel
金额：
$ 41.18万
依托单位：
University of California-Los Angeles
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-05-01 至 2024-10-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1955660&HistoricalAwards=false
关键词：
Collaborative Research CIF Medium Theoretical

项目摘要

Many electronic communication systems are bidirectional: they can transmit information in both directions. At any given time, however, the system may only be actively transmitting information in one direction. In this case, the reverse link, which would otherwise be idle, can be used to facilitate transmission in the forward direction. While this fact has long been recognized, it is not well understood how to best employ feedback to maximize the rate and minimize complexity for the forward link. This project will develop practical schemes that improve communication system performance by using feedback links and mathematically characterizing optimal methods for using feedback links. The improved understanding of how to use feedback should improve wireless communication technologies for cellular systems and the internet of things. The project will broaden participation in computing by offering research opportunities to women undergraduates in electrical engineering, with the goal of increasing the number of women who attend graduate programs in the field. It will also develop a publicly-accessible service that provides channels "in the cloud" for digital communication courses and research projects.Historically, research in information and coding theory has focused on idealized communication scenarios with either perfect feedback or none at all. Many practical systems, however, have feedback links that are available but imperfect. This project will examine how to best use communication channels with a limited amount of feedback to achieve fast and reliable transmission of information. The project will provide clear theoretical guidance about how much feedback information is useful and how the transmitter should use feedback most effectively to adapt its encoding strategy. The project will provide bounds and approximations on the communication rates and delays achievable with a limited number of feedback transmissions. Leveraging a novel view of feedback coding as a form of joint source-channel coding, the project will address open questions concerning the second-order coding rate and "moderate deviations" performance with feedback. Finally, the project will explore how to improve delay-reliability tradeoffs achievable with feedback in the scenario where an information source, such as a sensor, produces information continuously, by combining the new information with the old information to encode immediately instead of waiting to buffer long blocks of data to encode with traditional block codes.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.

许多电子通信系统都是双向的：它们可以向两个方向传输信息。但是，在任何给定时间，系统只能在一个方向上积极地传输信息。在这种情况下，否则会闲置的反向链接可用于促进向前方向的传输。尽管这一事实长期以来已经得到认可，但尚不清楚如何最好地利用反馈来最大程度地提高速率并最大程度地减少向前链接的复杂性。该项目将通过使用反馈链接和数学表征使用反馈链接的最佳方法来开发实用方案，从而改善通信系统性能。对如何使用反馈的改进理解应改善用于蜂窝系统和物联网的无线通信技术。该项目将通过向电气工程大学的女性提供研究机会来扩大计算的参与，以增加参加该领域研究生课程的女性人数。它还将开发一项公开访问的服务，该服务为数字通信课程和研究项目提供“云中”的渠道。从历史上讲，信息和编码理论的研究集中在具有完美反馈或根本没有的理想化通信方案上。但是，许多实用系统都具有可用但不完美的反馈链接。该项目将研究如何最好地使用有限反馈的沟通渠道，以实现信息的快速和可靠的信息传输。该项目将提供明确的理论指导，以了解多少反馈信息有用，以及发射器应如何最有效地使用反馈来调整其编码策略。该项目将提供有关通信率的界限和近似值，并在有限的反馈变速箱中实现延迟。该项目利用反馈编码作为联合源通道编码的一种形式的新型观点，将解决有关二阶编码率和“中等偏差”性能的开放问题。最后，该项目将探索如何通过将新信息与旧信息相结合，而不是立即编码，而不是等待缓冲长度块与传统的块相结合，该奖项反映了NSF的构建范围，该奖项反映了NSSF的Infortial and deem the Infort and the Infortial of Forne，诸如传感器的知名度和范围宽广的构建范围，可以通过反馈来改善信息源（例如传感器）连续产生信息的情况，可以连续地产生信息。影响审查标准。

项目成果

期刊论文数量（9）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Optimizing Write Voltages to Achieve Equal Reliability for All Pages in Flash Memory

优化写入电压以实现闪存中所有页面的同等可靠性

DOI：
发表时间：
2023
期刊：
Nonvolatile Memory Workshop
影响因子：
0
作者：
Galijasevic, S.;Wesel, R. D.
通讯作者：
Wesel, R. D.

Finite-Blocklength Performance of Sequential Transmission over BSC with Noiseless Feedback

无噪声反馈 BSC 上顺序传输的有限块长度性能

DOI：
10.1109/isit44484.2020.9174445
发表时间：
2020
期刊：
2020 IEEE International Symposium on Information Theory (ISIT
影响因子：
0
作者：
Yang, Hengjie;Wesel, Richard D.
通讯作者：
Wesel, Richard D.

Timely Transmissions Using Optimized Variable Length Coding

DOI：
10.1109/infocomwkshps51825.2021.9484506
发表时间：
2021-02
期刊：
IEEE INFOCOM 2021 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS)
影响因子：
0
作者：
A. Arafa;R. Wesel
通讯作者：
A. Arafa;R. Wesel

Low Complexity Algorithms for Transmission of Short Blocks over the BSC with Full Feedback

具有全反馈的 BSC 上短块传输的低复杂度算法