空对地通信的双路串行符号间干扰消除

IF 3.7 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2024-11-19 DOI:10.1109/LCOMM.2024.3502152

Zonglong Chen;Songkang Huang;Ming Jiang

{"title":"空对地通信的双路串行符号间干扰消除","authors":"Zonglong Chen;Songkang Huang;Ming Jiang","doi":"10.1109/LCOMM.2024.3502152","DOIUrl":null,"url":null,"abstract":"The high Doppler effect and severe multipath delay are among the major challenges in air-to-ground (A2G) communication scenarios, where the maximum multipath delay may exceed the duration of one or more orthogonal frequency division multiplexing (OFDM) symbols, resulting in severe inter-symbol interference (ISI). In this letter, we propose a new frame structure constituted by grouped training sequences (GTSs), OFDM symbols and guard interval (GI). Specifically, two GTSs are respectively prefixed and postfixed to several cyclic-prefix-free OFDM symbols for Doppler frequency offset (DFO) and multipath delay estimation. Moreover, a two-path serial ISI cancellation (TSIC) algorithm is designed to recover the transmitted signal. Compared with existing algorithms, the new scheme can reduce errors and increase the spectral efficiency of the system.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"29 1","pages":"100-104"},"PeriodicalIF":3.7000,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Two-Path Serial Inter-Symbol-Interference Cancellation for Air-to-Ground Communication\",\"authors\":\"Zonglong Chen;Songkang Huang;Ming Jiang\",\"doi\":\"10.1109/LCOMM.2024.3502152\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The high Doppler effect and severe multipath delay are among the major challenges in air-to-ground (A2G) communication scenarios, where the maximum multipath delay may exceed the duration of one or more orthogonal frequency division multiplexing (OFDM) symbols, resulting in severe inter-symbol interference (ISI). In this letter, we propose a new frame structure constituted by grouped training sequences (GTSs), OFDM symbols and guard interval (GI). Specifically, two GTSs are respectively prefixed and postfixed to several cyclic-prefix-free OFDM symbols for Doppler frequency offset (DFO) and multipath delay estimation. Moreover, a two-path serial ISI cancellation (TSIC) algorithm is designed to recover the transmitted signal. Compared with existing algorithms, the new scheme can reduce errors and increase the spectral efficiency of the system.\",\"PeriodicalId\":13197,\"journal\":{\"name\":\"IEEE Communications Letters\",\"volume\":\"29 1\",\"pages\":\"100-104\"},\"PeriodicalIF\":3.7000,\"publicationDate\":\"2024-11-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Communications Letters\",\"FirstCategoryId\":\"94\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10758207/\",\"RegionNum\":3,\"RegionCategory\":\"计算机科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"TELECOMMUNICATIONS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Communications Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10758207/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}

引用次数: 0

摘要

高多普勒效应和严重的多径延迟是空对地（A2G）通信场景中的主要挑战，其中最大多径延迟可能超过一个或多个正交频分复用（OFDM）符号的持续时间，导致严重的码间干扰（ISI）。本文提出了一种由分组训练序列（gts）、OFDM符号和保护间隔（GI）组成的帧结构。具体来说，两个gts分别被前置和后置到几个无周期前缀的OFDM符号上，用于多普勒频偏（DFO）和多径延迟估计。此外，设计了一种双路串行ISI抵消（TSIC）算法来恢复传输信号。与现有算法相比，新方案可以减少误差，提高系统的频谱效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Two-Path Serial Inter-Symbol-Interference Cancellation for Air-to-Ground Communication

The high Doppler effect and severe multipath delay are among the major challenges in air-to-ground (A2G) communication scenarios, where the maximum multipath delay may exceed the duration of one or more orthogonal frequency division multiplexing (OFDM) symbols, resulting in severe inter-symbol interference (ISI). In this letter, we propose a new frame structure constituted by grouped training sequences (GTSs), OFDM symbols and guard interval (GI). Specifically, two GTSs are respectively prefixed and postfixed to several cyclic-prefix-free OFDM symbols for Doppler frequency offset (DFO) and multipath delay estimation. Moreover, a two-path serial ISI cancellation (TSIC) algorithm is designed to recover the transmitted signal. Compared with existing algorithms, the new scheme can reduce errors and increase the spectral efficiency of the system.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.