Performance comparison of adaptation approaches for mobile information system

Qingguo Shen, Li Wang
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引用次数: 2

Abstract

We analyze the access behavior and traffic characteristics of typical mobile services, study and compare the performance of different adaptation approaches. For a typical unified Web site, 10% of access requests are from mobile users, 90% from PC users. The heterogeneity in the communicating devices and networks QoS characteristics need to be handled through different forms of software-supported adaptation. The two main adaptation models are server-based model and proxy-based model. The processing load of server or proxy carrying out the adaptation may increase by about 10 times or more. In order to provide differential services and increase the scalability, the server-adaptation and proxy-adaptation should coexist. They are suitable for paid and free services respectively. Paid services account for about 80% of mobile traffic, and free services account for 20%. Server and proxy processing capability should be increased by more than 2 times. Thus traffic and processing load is divided rationally.
移动信息系统自适应方法的性能比较
分析了典型移动业务的接入行为和流量特征,研究并比较了不同自适应方法的性能。对于一个典型的统一Web站点,10%的访问请求来自移动用户,90%来自PC用户。通信设备和网络QoS特性的异构性需要通过不同形式的软件支持适应来处理。两种主要的适配模型是基于服务器的适配模型和基于代理的适配模型。执行适配的服务器或代理的处理负载可能增加约10倍或更多。为了提供不同的服务并增加可伸缩性,服务器适应和代理适应应该共存。它们分别适用于付费和免费服务。付费服务约占移动流量的80%,免费服务约占20%。服务器和代理处理能力应提高2倍以上。从而合理划分流量和处理负荷。
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