Pithos

Engelbrecht, Herman A.; Gilmore, John S.

doi:10.1145/3105577

Cited by 7 publications

(3 citation statements)

References 59 publications

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“…Energy trade-off [67] QoS/QoE MAUI [87] Reliability Reliability Database replication [88] Database replication [88] Pithos [89] Backup [105] IRS [106] Mutual verification [107] RACS [108] Hotspot Scalability KIWANO [102] Peer-assisted [91] AOI-cast [103] Virtual server transfer [90] Security Cheating Prevention Cryptographic measures [104] Cheating Detection Behavior monitoring [105] IRS [106] Mutual verification [107] RACS [108]…”

Section: Sufficiency Energy Efficiencymentioning

confidence: 99%

“…The authors of [78] provided a comprehensive survey of P2P game state persistency. Later, [89] proposed a two-tier architecture. Overlay storage employs a distributed hash table (DHT) and super-peers to provide high reliability and fault tolerance.…”

Section: Requirement Satisfactionmentioning

confidence: 99%

“…Pervasive games require high connectivity to game masters (i.e., specially selected players) for content distribution, diegetic communication, and game progress track [74]. Although Pithos [89] adds reliability through a two-tier game state replication, the design does not address the replica synchronization issue, which may lead to inconsistent game state.…”

Section: Limitationsmentioning

confidence: 99%

See 2 more Smart Citations

A Study on Design Requirement Development and Satisfaction for Future Virtual World Systems

et al. 2020

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Virtual worlds have become global platforms connecting millions of people and containing various technologies. For example, No Man’s Sky (nomanssky.com), a cross-platform virtual world, can dynamically and automatically generate content with the progress of user adventure. AltspaceVR (altvr.com) is a social virtual reality platform supporting motion capture through Microsoft’s Kinect, eye tracking, and mixed reality extension. The changes in industrial investment, market revenue, user population, and consumption drive the evolution of virtual-world-related technologies (e.g., computing infrastructure and interaction devices), which turns into new design requirements and thus results in the requirement satisfaction problem in virtual world system architecture design. In this paper, we first study the new or evolving features of virtual worlds and emerging requirements of system development through market/industry trend analysis, including infrastructure mobility, content diversity, function interconnectivity, immersive environment, and intelligent agents. Based on the trend analysis, we propose a new design requirement space. We, then, discuss the requirement satisfaction of existing system architectures and highlight their limitations through a literature review. The feature-based requirement satisfaction comparison of existing system architectures sheds some light on the future virtual world system development to match the changing trends of the user market. At the end of this study, a new architecture from an ongoing research, called Virtual Net, is discussed, which can provide higher resource sufficiency, computing reliability, content persistency, and service credibility.

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Section: Sufficiency Energy Efficiencymentioning

confidence: 99%

Section: Requirement Satisfactionmentioning

confidence: 99%

Section: Limitationsmentioning

confidence: 99%

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A Study on Design Requirement Development and Satisfaction for Future Virtual World Systems

et al. 2020

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Key Technologies for Networked Virtual Environments

Salinas

Boronat

Sapena

et al. 2023

Multimed Tools Appl

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Thanks to the improvements experienced in technology during the last few years, most especially in virtual reality systems, the number and potential of networked virtual environments or NVEs and their users have been increasing. NVEs aim to give distributed users a feeling of immersion in a virtual world and the possibility of interacting with other users or with virtual objects inside it, just like when they interact in the real world. Being able to provide that feeling and natural interactions when the users are geographically separated is one of the goals of these systems. Nevertheless, this goal is especially sensitive to different issues, such as different connections with heterogeneous throughput or particular network latencies, which can lead to consistency and synchronization problems and, thus, to a worsening of the users’ quality of experience or QoE. With the purpose of solving these issues, researchers have proposed and evaluated numerous technical solutions, in fields like network architectures, data distribution and filtering, resource balancing, computing models, predictive modeling and synchronization in NVEs. This paper gathers and classifies them, summarizing their advantages and disadvantages, using a new way of classification. With the current increase in the number of NVEs and the multiple solutions proposed so far, this paper aims to become a useful tool and a starting point not only for future researchers in this field but also for those who are new to NVEs development, in which guaranteeing a good users’ QoE is essential.

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