The role of the proxy server is very important for mobile
computers, which is mainly distilling the original multimedia data.
Conventional proxy servers distil image files into a fixed size
regardless of the display characteristics of the target mobile computer.
We propose an enhanced proxy server called `class-based proxy' that
provides a mobile computer with image files distilled according to its
display class. Implementation with HTTP 1.0 reveals that the proposed
proxy significantly improves the transmission speed of the existing
proxy servers through customized distillation, and provides mobile
computer users with a homepage at comparable speed and quality to
desktop PCs. It also allows mobile computers of the same display class
to share the cached files, which results in a higher cache hit ratio and
thus improved efficiency and scalability
[Show abstract][Hide abstract] ABSTRACT: In this paper, wireless internet proxy server clusters are used for the wireless internet because their caching, distillation, and clustering functions are helpful to overcome the limitations and needs of the wireless internet. TranSend was proposed as a clustering based wireless internet proxy server but it has disadvantages; 1) its scalability is difficult to achieve because there is no systematic way to do it and 2) its structure is complex because of the inefficient communication structure among modules. In our former research, we proposed the CD-A structure which can be scalable in a systematic way but it also has disadvantages; its communication structure among modules is partly complex. In this paper, we proposed a consolidated scheme which has a systematic scalability and an efficient communication structure among modules. We performed experiments using 16 PCs and experimental results show 196% and 40% performance improvement of the proposed system compared to the TranSend and the CD-A system, respectively.
The KIPS Transactions PartA 06/2006; DOI:10.3745/KIPSTA.2006.13A.3.231
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