Cloudification of Virtual Reality Gliding Simulation Game

Abstract

Cloud gaming provides cloud computing-based game as a service. In this paper we describe the development of a virtual reality base gliding game as a proof-of-concept. In the cloud, a cloud gaming platform is hosted on cloud servers with two principal components: game logic engaged in the implementation of game mechanics and game interactions, and video renderer that generates the game frames in real-time. The virtual gliding game was realized in the Unity gaming engine. To ensure smooth playability, and access for remote players, the computationally-intensive parts of the game were offloaded to a physically remote cloud server. To analyze the efficiency of the client-cloud interaction, three cloud servers were setup. The results of cloudification were evaluated by measuring and comparing computation offloading performance, network traffic, the probability of service drop, perceptual quality and video quality.Information 2018, 9, 293 2 of 15 (GBaaS) and Game as a Service (GaaS) [6]. Mobile backend-as-a-service (MBaaS) allows game programmers to connect the backend of their software systems to the cloud, as well as to enable integration with social networks [7]. A player can interface with the cloud-hosted application using a thin client model, which controls the displaying of the game's video frames from the cloud server and for responding to the player's commands and responding back to the cloud [8]. These cloud services aim to provide powerful real-time tools specifically dedicated for gaming, with applications emerging in other areas, such as medicine, marketing and education as well.The characteristics of mobile devices recently were rising rapidly in terms of computational abilities, memory, features, and number of apps. However, mobile apps are still relatively inferior by bounded battery life, lack of stability of wireless communications, and prone-to-interruptions connections and constrained bandwidth, and lack of local storage and computing power. By relocating (off-loading) local device tasks to the cloud servers, efficient and ambient cloud services can be accomplished, thus guaranteeing cloud gaming ecosystems with a large number of mobile game players and mobile devices working remotely, but in coordination [9]. Since mobile devices have only limited memory and computational resources, information stored on local devices is synchronized with shared data centers, therefore the system's availability is a demanding factor.The problems faced by cloud gaming include the server provisioning problem [10], with the goal of slashing server running and data storage costs, as well as measuring and reducing the latency [11]. There is also some work focusing on graphics rendering and video encoding for network bandwidth reduction in the video transmission [12]. The cloud resource allocation problems in order to minimize the interaction latency among interactive clients were researched in Reference [13]. A promising approach utilized by many authors to mitigate cloud-related problems can by implemented by computati...

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