Metaverse Survey & Tutorial: Exploring Key Requirements, Technologies, Standards, Applications, Challenges, and Perspectives

TL;DR

This survey comprehensively maps the metaverse landscape, defining its scope as a persistent, immersive convergence of AR/VR/XR, AI, and blockchain. It presents an architectural framework (infrastructure, interactivity, ecosystem) and enumerates core requirements (energy efficiency, interoperability, decentralization, security, privacy) alongside key characteristics (immersion, spatiotemporal dynamics, scalability, heterogeneity, QoE). The authors analyze six central technologies (interactive experience, communication networks, ubiquitous computing, digital twins, AI, cybersecurity) and synthesize standards efforts across IEEE, ITU-T, 3GPP, W3C, IEC, MPEG-V, and the MSF, highlighting how these standards enable interoperability and governance. They review metaverse applications across education, healthcare, business/finance, socialization, industry, and defense, and discuss challenges and future directions spanning infrastructure, security, ethics, sustainability, device diversity, and economy. The work provides actionable insights and recommendations to guide researchers, policymakers, and industry stakeholders toward a secure, scalable, and inclusive open metaverse.

Abstract

In this paper, we present a comprehensive survey of the metaverse, envisioned as a transformative dimension of next-generation Internet technologies. This study not only outlines the structural components of our survey but also makes a substantial scientific contribution by elucidating the foundational concepts underlying the emergence of the metaverse. We analyze its architecture by defining key characteristics and requirements, thereby illuminating the nascent reality set to revolutionize digital interactions. Our analysis emphasizes the importance of collaborative efforts in developing metaverse standards, thereby fostering a unified understanding among industry stakeholders, organizations, and regulatory bodies. We extend our scrutiny to critical technologies integral to the metaverse, including interactive experiences, communication technologies, ubiquitous computing, digital twins, artificial intelligence, and cybersecurity measures. For each technological domain, we rigorously assess current contributions, principal techniques, and representative use cases, providing a nuanced perspective on their potential impacts. Furthermore, we delve into the metaverse's diverse applications across education, healthcare, business, social interactions, industrial sectors, defense, and mission-critical operations, highlighting its extensive utility. Each application is thoroughly analyzed, demonstrating its value and addressing associated challenges. The survey concludes with an overview of persistent challenges and future directions, offering insights into essential considerations and strategies necessary to harness the full potential of the metaverse. Through this detailed investigation, our goal is to articulate the scientific contributions of this survey paper, transcending a mere structural overview to highlight the transformative implications of the metaverse.

Figures (7)

• Figure 1: A timeline of Metaverse technologies.
• Figure 2: Overview of key global business sectors actively investing in the metaverse as of March 2022.
• Figure 3: Organization structure of the survey.
• Figure 4: The metaverse's key requirements and characteristics.
• Figure 5: An overview of the typical metaverse architecture.