Dueling Double DQN-based directional MAC protocol for THz-band responsive spaces

IF 4.6 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

ICT Express Pub Date : 2026-08-01 Epub Date: 2026-05-29 DOI:10.1016/j.icte.2026.05.003

Jun Young Park, Woong Soo Na

引用次数: 0

Abstract

Immersive services such as virtual reality (VR) and holography demand multi-gigabit throughput and ultra-low latency. To meet these demands, THz-band directional communication is essential but vulnerable to LoS blockages in dynamic responsive spaces. To address this issue, we propose a Responsive-Space Directional MAC (RS-DMAC) based on Dueling Double DQN. RS-DMAC jointly learns the selection of beams and relay nodes using an observation-driven RL formulation based on communication-level measurements. Simulation results demonstrate that RS-DMAC achieves higher throughput, lower latency, and improved link reliability compared to conventional schemes for immersive service requirements, while maintaining a reasonable energy-efficiency trade-off.

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太赫兹波段响应空间中基于双dqn的双向MAC协议

虚拟现实（VR）和全息等沉浸式服务需要千兆位吞吐量和超低延迟。为了满足这些需求，太赫兹波段定向通信是必不可少的，但在动态响应空间中容易受到LoS阻塞的影响。为了解决这个问题，我们提出了一种基于Dueling Double DQN的响应空间定向MAC （RS-DMAC）。RS-DMAC使用基于通信级测量的观测驱动RL公式共同学习波束和中继节点的选择。仿真结果表明，与传统的沉浸式服务方案相比，RS-DMAC实现了更高的吞吐量、更低的延迟和更高的链路可靠性，同时保持了合理的能效权衡。

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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来源期刊

ICT Express Multiple-

CiteScore

10.20

自引率

1.90%

发文量

167

审稿时长

35 weeks

期刊介绍： The ICT Express journal published by the Korean Institute of Communications and Information Sciences (KICS) is an international, peer-reviewed research publication covering all aspects of information and communication technology. The journal aims to publish research that helps advance the theoretical and practical understanding of ICT convergence, platform technologies, communication networks, and device technologies. The technology advancement in information and communication technology (ICT) sector enables portable devices to be always connected while supporting high data rate, resulting in the recent popularity of smartphones that have a considerable impact in economic and social development.