Interactivity-loss avoidance in event delivery synchronization for mirrored game architectures

Palazzi, Claudio E.; Ferretti, Stefano; Cacciaguerra, Stefano; Roccetti, Marco

doi:10.1109/tmm.2006.876229

Cited by 47 publications

(62 citation statements)

References 20 publications

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“…On one hand, most of the existing IDMS solutions (compiled in [2,8]) were designed for specific use cases, such as audio/video streaming (e.g., [1], [5], [13], [14]), conferencing (e.g., [15], [16], [17], [18]), gaming (e.g., [10], [12], [17], [20], [21], [22]), collaborative virtual environments (e.g., [11], [12]) or synchronous e-learning (e.g., [15], [17]), involving different types of streams, such as video, audio, haptic media (e.g., [16], [17]), or users' events (e.g., [1], [20], [21]). …”

Section: Related Workmentioning

confidence: 99%

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Design, development and assessment of control schemes for IDMS in a standardized RTCP-based solution

et al. 2014

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-Currently, several media sharing applications that allow social interactions between distributed groups of users are gaining momentum. This paper focuses on a key factor for providing a satisfying feeling of togetherness in those networked scenarios, which is to ensure synchronous playout between distributed users. This research problem is known as Inter-Destination Media Synchronization (IDMS). Particularly, this paper discusses the benefits of extending RTP/RTCP protocols for IDMS purposes. Accordingly, newly defined RTCP messages and control techniques have been added to a previous version of a centralized RTP/RTCP-based IDMS solution to enable an adaptive, highly accurate and standardized solution.Moreover, as different control schemes for IDMS exist, and each one is best suited for specific use cases, our IDMS solution has been extended to be able to adopt each one of them. Simulation results prove the satisfactory responsiveness of our IDMS solution, as well as its consistent behavior when using each one of the deployed control schemes.

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Section: Related Workmentioning

confidence: 99%

“…This multicast limitation is not an issue when using SMS, because the feedback reports are sent by the Sync Clients in a unicast way to the Sync Manager. [13], [14] [15], [12], [16], [17], [5], [3] [19], [20], [21], [22], [18],…”

Section: Related Workmentioning

confidence: 99%

Design, development and assessment of control schemes for IDMS in a standardized RTCP-based solution

et al. 2014

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“…In [10], a bucket mechanism (in which users' events are delayed enough time to prevent inconsistencies before being executed) is used as a DCS-based solution to be applied in interactive Multiplayer Online Games (MOG). The work in [11] proposes a DCS-based algorithm for meeting the ordering, responsiveness and interactivity properties in MOG, while preserving a global consistent state (IDMS). Similarly, [12] presents a DCS-based mechanism designed to achieve both interactivity and consistency in MOG.…”

Section: Related Workmentioning

confidence: 99%

Design and Simulation of a Distributed Control Scheme for Inter-destination Media Synchronization

Montagud

Boronat

Stokking

2013

2013 IEEE 27th International Conference on Advanced Information Networking and Applications (AINA)

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Abstract-Inter-DestinationMultimedia Synchronization (IDMS) is a key requirement to enable satisfying group shared media experiences. This paper presents the design and simulation of a Distributed Control Scheme (DCS) for IDMS. In this scheme, geographically dispersed receivers exchange (multicast) RTCP reports on their arrival and playout timing for RTP packets, and each one of them uses the collected reports from the other receivers belonging to the same logical group (or cluster) to adaptively adjust its local playout timing such that an overall synchronization status (within allowable limits) is maintained. Also, the strengths (interactivity, flexibility, scalability, and robustness) and weaknesses (traffic overhead, security) of a DCS for IDMS are discussed, in comparison with centralized approaches. Moreover, a simple technique to enhance the performance in terms of coherence when using the DCS for IDMS is proposed. Simulation results prove the effectiveness of the proposed control scheme and techniques to guarantee concurrently synchronized playout points for independent clusters of receivers.

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“…While playability is commonly understood as being the trade off between response time and consistency [1] [2] there is no globally accepted definition of fairness for online games and different research groups usually discuss fairness concepts in specific ways that suit a particular situation or model.…”

Section: Introductionmentioning

confidence: 99%

“…Playability in online games has been studied under different forms for both client-servers [7] and distributed or mirrored [2] architectures. Playability and inconsistency in games is also related to research in the area of Distributed Virtual Environments (DVE) which is exploring similar concepts.…”

Section: Introductionmentioning

confidence: 99%

Fairness and playability in online multiplayer games

Brun

Safaei

Boustead

CCNC 2006. 2006 3rd IEEE Consumer Communications and Networking Conference, 2006.

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Playability and fairness are crucial elements of an enjoyable online game experience. The unavoidable propagation time introduced by the geographical distance between participants can deteriorate the game responsiveness and playability. Also, differences in these delays can provide unfair advantages and/or disadvantages to different players. This paper explores the causal relationships between propagation time, inconsistencies, playability and fairness in online multiplayer games. It clearly defines causes of unfairness and introduces a theoretical quantification supported by an experimental technique to evaluate it in simulations. It also demonstrates through simulations the impact of changes in network architecture and topology on playability and fairness. Disciplines Physical Sciences and Mathematics Publication DetailsThis article was originally published as: Brun, J, Safaei, Abstract-Playability and fairness are crucial elements of an enjoyable online game experience. The unavoidable propagation time introduced by the geographical distance between participants can deteriorate the game responsiveness and playability. Also, differences in these delays can provide unfair advantages and/or disadvantages to different players. This paper explores the causal relationships between propagation time, inconsistencies, playability and fairness in online multiplayer games. It clearly defines causes of unfairness and introduces a theoretical quantification supported by an experimental technique to evaluate it in simulations. It also demonstrates through simulations the impact of changes in network architecture and topology on playability and fairness.

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Interactivity-loss avoidance in event delivery synchronization for mirrored game architectures

Cited by 47 publications

References 20 publications

Design, development and assessment of control schemes for IDMS in a standardized RTCP-based solution

Design, development and assessment of control schemes for IDMS in a standardized RTCP-based solution

Design and Simulation of a Distributed Control Scheme for Inter-destination Media Synchronization

Fairness and playability in online multiplayer games

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