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Mobile Agents for Wireless Computing: The Convergence of Wireless Computational Models with Mobile-Agent Technologies

机译：无线计算的移动代理：移动代理技术与无线计算模型的融合

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摘要

Wireless mobile computing breaks the stationary barrier and allows users to compute and access information from anywhere and at anytime. However, this new freedom of movement does not come without new challenges. The mobile computing environment is constrained in many ways. Mobile elements are resource-poor and unreliable. Their network connectivity is often achieved through tow-bandwidth wireless links. Furthermore, connectivity is frequently lost for variant periods of time. The difficulties raised by these constraints are compounded by mobility that induces variability in the availability of both communication and computational resources. These severe restrictions have a great impact on the design and structure of mobile computing applications and motivate the development of new software models. To this end, a number of extensions to the traditional distributed system architectures have been proposed. These new software models, however, are static and require a priori set up and configuration. This in effect limits their potential in dynamically serving the mobile client; the client cannot access a site at which an appropriate model is not configured in advance. The contribution of this paper is twofold. First, the paper shows how an implementation of the proposed models using mobile agents eliminates this limitation and enhances the utilization of the models. Second, new frameworks for Web-based distributed access to databases are proposed and implemented.
机译：无线移动计算突破了固定障碍，使用户可以随时随地计算和访问信息。但是，这种新的行动自由并非没有新的挑战。移动计算环境在很多方面受到限制。移动元素资源匮乏且不可靠。它们的网络连接通常是通过双带宽无线链路实现的。此外，在不同的时间段内，连接性经常丢失。这些约束条件带来的困难因移动性而变得更加复杂，从而导致通信和计算资源的可用性发生变化。这些严格的限制对移动计算应用程序的设计和结构有很大影响，并刺激了新软件模型的开发。为此，已经提出了对传统分布式系统架构的许多扩展。但是，这些新软件模型是静态的，需要先验设置和配置。这实际上限制了他们动态服务移动客户端的潜力。客户端无法访问未预先配置适当型号的站点。本文的贡献是双重的。首先，本文显示了使用移动代理实现所提出的模型如何消除该限制并提高了模型的利用率。其次，提出并实现了基于Web的数据库分布式访问的新框架。

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