Space-air-ground Integrated Networks For Urllc In Spatial Digital Twins

Zhihan Lyu, Dongliang Chen, Haibin Lv
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Abstract

This work intends to improve ultra-reliable and low-latency communication (URLLC) service in space-air-ground integrated (SAGIN) and the network's quality of service. To this end, this work considers the queuing latency and transmission reliability of uplink and downlink networks. It also proposes an intelligent coordinated scheduling algorithm (ICSA) based on the adaptive Particle Swarm Optimization algorithm. The simulation experiment proves that ICSA achieves the optimal total priority and completion rate when scheduling different numbers of tasks. In addition, the time-slot Areal Locations of Hazardous Atmospheres protocol is applied to reduce URLLC's control-plane latency. With 100 or fewer tasks, the network resources can be scheduled with ease. Under the two transmission states, the Preamble Reservation Scheme is designed to provide timely URLLC services. As a result, the URLLC's random-access probability decreases as the number of URLLC requests increases. The results have vital significance for standardizing and promoting the URLLC service in the Sixth Generation Mobile Communication era.
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空间数字孪生中的空-空-地集成网络 Urllc
这项工作旨在改善天-空-地一体化(SAGIN)中的超可靠和低延迟通信(URLLC)服务以及网络的服务质量。为此,本研究考虑了上行和下行网络的排队延迟和传输可靠性。它还提出了一种基于自适应粒子群优化算法的智能协调调度算法(ICSA)。仿真实验证明,ICSA 在调度不同数量的任务时,总优先级和完成率都达到了最优。此外,为了减少 URLLC 的控制面延迟,还应用了危险环境的时隙区域位置协议。在 100 个或更少的任务下,网络资源可以轻松调度。在两种传输状态下,序言预留方案旨在提供及时的 URLLC 服务。因此,URLLC 的随机访问概率会随着 URLLC 请求数量的增加而降低。这些结果对第六代移动通信时代URLLC服务的标准化和推广具有重要意义。
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来源期刊
CiteScore
10.80
自引率
0.00%
发文量
55
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