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A Profile-Based Multimedia Sharing Scheme With Virtual Community, Based on Personal Space in a Ubiquitous Computing Environment

机译：普适计算环境中基于个人空间的基于配置文件的虚拟社区多媒体共享方案

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摘要

For ubiquitous computing environments, an important parameter is whether all the components in the specific environment can connect with one another. Given this capability, we can share various kinds of content across mobile terminals. This paper introduces an effective scheme to manage multimedia sharing based on specially designed profiles and a virtual community. A virtual community is defined as any specific group of users connected for a common interest. Specifically the proposed scheme consists of two layers, i.e., a community construction layer and a multimedia sharing layer, based on personal spaces, which are responsible for constructing and managing the multimedia sharing community. The community construction layer, which is designed to be run on the mobile terminals, provides an effective way to find community members simultaneously, based on specially designed profiles, such as a user profile and an abstract profile. The multimedia sharing layer is responsible for sharing multimedia content, and is constructed as a specially designed scheme based on locality. The proposed scheme provides an effective multimedia sharing mechanism within a community. Simulation results show that the number of messages and the time required for community member discovery is reduced by 32% and 73%, respectively, in comparison with the conventional DHT-based scheme. The approach also reduces the time to exchange content by 50% with respect to the same baseline.
机译：对于无处不在的计算环境，一个重要的参数是特定环境中的所有组件是否可以相互连接。有了此功能，我们就可以在移动终端之间共享各种内容。本文介绍了一种基于特殊设计的配置文件和虚拟社区来管理多媒体共享的有效方案。虚拟社区定义为出于共同利益而连接的任何特定用户组。具体地，所提出的方案包括基于个人空间的两层，即社区构建层和多媒体共享层，其负责构建和管理多媒体共享社区。旨在在移动终端上运行的社区构建层提供了一种有效的方式，可以基于特殊设计的配置文件（例如用户配置文件和抽象配置文件）同时查找社区成员。多媒体共享层负责共享多媒体内容，并被构造为基于位置的特殊设计方案。所提出的方案在社区内提供了有效的多媒体共享机制。仿真结果表明，与传统的基于DHT的方案相比，社区成员发现所需的消息数量和时间分别减少了32％和73％。与相同的基准相比，该方法还将交换内容的时间减少了50％。

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