arXiv:2510.14243cs.ITcs.AI2025-10

提出空间计算通信框架,优化多用户VR的延迟与能耗。

Spatial Computing Communications for Multi-User Virtual Reality in Distributed Mobile Edge Computing Network

  • 用概率模型联合建模物理与虚拟空间,统一管理资源
  • 多目标优化使系统延迟和能耗显著降低,推理延迟更优
  • 适合追求低延迟或节能的分布式边缘计算部署场景

沉浸式虚拟现实(VR)应用对延迟、能效和计算资源提出了严苛要求,尤其在多用户交互场景中。为应对这些挑战,我们提出空间计算通信(SCC)框架,旨在通过分布式移动边缘计算(MEC)网络满足多用户VR的延迟与能效需求。SCC通过用户动态和资源需求的概率模型,联合表示由用户与基站定义的物理空间以及共享沉浸环境的虚拟空间。资源部署被建模为多目标组合优化(MOCO)问题,同时最小化跨分布式MEC资源的系统延迟与能耗。为此,我们提出MO-CMPO:一种结合监督学习与偏好权重引导的强化学习微调的多目标一致性模型。借助稀疏图神经网络(GNN),MO-CMPO高效生成帕累托最优解。基于真实5G新空口(NR)基站数据集的仿真表明,相比基线方法,MO-CMPO在超体积性能上表现更优,且推理延迟显著更低。分析还揭示了实际部署模式:以延迟为导向的方案倾向本地MEC执行以减少传输延迟,以能效为导向的方案则通过减少冗余部署来节省能源。

原文摘要 · Abstract (English)

Immersive virtual reality (VR) applications impose stringent requirements on latency, energy efficiency, and computational resources, particularly in multi-user interactive scenarios. To address these challenges, we introduce the concept of spatial computing communications (SCC), a framework designed to meet the latency and energy demands of multi-user VR over distributed mobile edge computing (MEC) networks. SCC jointly represents the physical space, defined by users and base stations, and the virtual space, representing shared immersive environments, using a probabilistic model of user dynamics and resource requirements. The resource deployment task is then formulated as a multi-objective combinatorial optimization (MOCO) problem that simultaneously minimizes system latency and energy consumption across distributed MEC resources. To solve this problem, we propose MO-CMPO, a multi-objective consistency model with policy optimization that integrates supervised learning and reinforcement learning (RL) fine-tuning guided by preference weights. Leveraging a sparse graph neural network (GNN), MO-CMPO efficiently generates Pareto-optimal solutions. Simulations with real-world New Radio base station datasets demonstrate that MO-CMPO achieves superior hypervolume performance and significantly lower inference latency than baseline methods. Furthermore, the analysis reveals practical deployment patterns: latency-oriented solutions favor local MEC execution to reduce transmission delay, while energy-oriented solutions minimize redundant placements to save energy.

空间计算边缘计算多用户VR多目标优化

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