Accommodating digital twins (DTs) in the metaverse is essential to achieving digital reality. This need for integrating DTs into the metaverse while operating them at the network edge has increased the demand for a decentralized edge-enabled metaverse. Hence, to consolidate the fusion between real and digital entities, it is necessary to harmonize the interoperability between DTs and the metaverse at the edge. In this paper, a novel decentralized metaverse framework that incorporates DT operations at the wireless edge is presented. In particular, a system of autonomous physical twins (PTs) operating in a massively-sensed zone is replicated as cyber twins (CTs) at the mobile edge computing (MEC) servers. To render the CTs' digital environment, this zone is partitioned and teleported as distributed sub-metaverses to the MEC servers. To guarantee seamless synchronization of the sub-metaverses and their associated CTs with the dynamics of the real world and PTs, respectively, this joint synchronization problem is posed as an optimization problem whose goal is to minimize the average sub-synchronization time between the real and digital worlds, while meeting the DT synchronization intensity requirements. To solve this problem, a novel iterative algorithm for joint sub-metaverse and DT association at the MEC servers is proposed. This algorithm exploits the rigorous framework of optimal transport theory so as to efficiently distribute the sub-metaverses and DTs, while considering the computing and communication resource allocations. Simulation results show that the proposed solution can orchestrate the interplay between DTs and sub-metaverses to achieve a 25.75 % reduction in the sub-synchronization time in comparison to the signal-to-noise ratio-based association scheme.
翻译:将数字双胞胎(DTs)纳入元流中对于实现数字现实至关重要。 在网络边缘运行时,需要将DT(DTs)纳入逆向中转,这增加了对分散边缘驱动的逆向。因此,为了整合实体和数字实体之间的融合,有必要将DTs与边缘的逆向相融合。在本文中,提出了一个新的分散化的元向框架,将DT操作纳入无线边缘的DT操作。特别是,在大规模扫描区运行的自动物理双胞胎(PTs)系统被复制为移动边缘计算服务器(MEC)的双胞胎(CTs)网络。为了让CTs的数字环境更加分散化,这个区域被分割和远程移动,作为向MEC服务器分布的子元元体。为了保证子元体及其相关的CT与基于真实世界和PTs的动态的同步,这个联合同步问题可以作为一个优化问题出现,目标是将S-75号双向双向双向双向双向双向的双向双向双向双向双向双向循环循环循环循环循环循环循环循环循环运行,同时考虑真实和同步的智能智能智能服务器(Mexal- dalalal- daldaldaldalverslationalalalaldaldaldaldaldal) se,同时演化,同时演算算算算,同时在真实和数字和数字和数字和数字和数字代代向世界的资源- dal- dirmaldalmadaldaldaldaldaldaldaldaldaldaldaldaldaldaldaldaldaldaldisl,同时演算,同时演算,同时将这个系统将这个系统将一个在正、一个拟议的的周期化、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制、制和代代代代际和代代代代代代际和代代际和代代际和代代代代际和代代代