无命中区的宽间隙跳频序列：界及其最优构造

IF 2.2 3区计算机科学 Q3 COMPUTER SCIENCE, INFORMATION SYSTEMS

IEEE Transactions on Information Theory Pub Date : 2025-02-20 DOI:10.1109/TIT.2025.3544225

Xingyu Zheng;Cuiling Fan;Zhengchun Zhou;Sihem Mesnager;Yang Yang

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引用次数: 0

摘要

跳频序列具有抗干扰能力强、截获概率低、保密性高、隐蔽性强等特点，在跳频通信系统中起着至关重要的作用。本文的目标是构建准同步跳频多址（FHMA）通信系统中同时达到最优无命中区（NHZ）长度和最优间隙的跳频系统。为了实现这一点，本文首先在假设指定频率槽集中的所有频率都被充分利用的情况下，推导出周期和非周期情况下间隙大小的更严格的上界。随后，本文提出了一类宽间隙跳频序列（wgfhs）和一类多时隙宽间隙跳频序列（mtwgfhs），两者同时具有最优NHZ长度和最优间隙。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Wide-Gap Frequency Hopping Sequences With No-Hit-Zone: Bounds and Their Optimal Constructions

Frequency hopping sequences (FHSs) play a crucial role in frequency hopping (FH) communication systems due to their strong anti-interference ability, low interception probability, high confidentiality and strong concealment. The objective of this paper is to construct FHSs for quasi-synchronous frequency-hopping multiple access (FHMA) communication systems that simultaneously achieve optimal no-hit zone (NHZ) length and optimal gap. To accomplish this, the paper first derives tighter upper bounds for the gap size in both periodic and aperiodic scenarios under the assumption that all frequencies within the designated frequency slot set are fully utilized. Subsequently, this paper proposes a class of wide-gap frequency hopping sequences (WGFHSs) and a class of multi-timeslot wide-gap frequency hopping sequences (MTWGFHSs), both of which simultaneously exhibit optimal NHZ length and optimal gap.

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来源期刊

IEEE Transactions on Information Theory 工程技术-工程：电子与电气

CiteScore

5.70

自引率

20.00%

发文量

514

审稿时长

12 months

期刊介绍： The IEEE Transactions on Information Theory is a journal that publishes theoretical and experimental papers concerned with the transmission, processing, and utilization of information. The boundaries of acceptable subject matter are intentionally not sharply delimited. Rather, it is hoped that as the focus of research activity changes, a flexible policy will permit this Transactions to follow suit. Current appropriate topics are best reflected by recent Tables of Contents; they are summarized in the titles of editorial areas that appear on the inside front cover.