OFDM雷达与5G BMSB共存的先进频谱共享技术

IF 4.8 1区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Broadcasting Pub Date : 2025-04-01 DOI:10.1109/TBC.2025.3553298

Rongxing Guo;Junsheng Mu;Jia Zhu;Lei Liu;Fei Qi;Yi Wang

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引用次数: 0

摘要

雷达系统与5G广播/组播业务广播（BMSB）网络的共存在资源分配方面提出了独特的挑战。我们的研究通过开发一种创新的方法来解决这些挑战，在基站向雷达安装附近的多个用户提供广播内容的情况下，同时进行子载波分配和功率分配。利用正交频分多址（OFDM）技术，引入惩罚项放宽二元约束，整合幂相关变量，通过二次变换将复杂的非线性问题转化为可管理的凸子挑战。我们的研究结果证明了优化5G BMSB性能和保持雷达功能之间的平衡，揭示了当雷达干扰存在时，将BMSB功率增加到某一点以上并不能提高性能。这一见解有助于设计与关键基础设施共存的节能5G BMSB系统。

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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Advanced Spectrum Sharing Techniques for Coexistence of OFDM Radar and 5G BMSB System

The coexistence of radar systems and 5G Broadcast/Multicast Service Broadcast (BMSB) networks presents unique challenges in resource allocation. Our study addresses these challenges by developing an innovative approach for simultaneous sub-carrier assignment and power distribution in a scenario where a base station delivers broadcast content to multiple users near a radar installation. Using orthogonal frequency division multiple access (OFDM), we introduce a penalty term to relax binary constraints and consolidate power-related variables, transforming the complex non-linear problem into manageable convex sub-challenges through quadratic transformation. Our results demonstrate the balance between optimizing 5G BMSB performance and preserving radar functionality, revealing that increasing BMSB power beyond a certain point doesn’t improve performance when radar interference is present. This insight contributes to designing energy-efficient 5G BMSB systems that coexist with critical infrastructure.

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来源期刊

IEEE Transactions on Broadcasting 工程技术-电信学

CiteScore

9.40

自引率

31.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Society’s Field of Interest is “Devices, equipment, techniques and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.” In addition to this formal FOI statement, which is used to provide guidance to the Publications Committee in the selection of content, the AdCom has further resolved that “broadcast systems includes all aspects of transmission, propagation, and reception.”