20-06-2013, 04:53 PM
A New Wireless Web Access Mode Based on Cloud Computing
A New Wireless Web Access.doc (Size: 1.78 MB / Downloads: 19)
Abstract
As most websites are designed for desktop PCs, it is extremely uncomfortable to browse these large pages on a wireless handheld device with small screen and limited user interface. So it is necessary to adapt these web pages to small screen devices. Besides, as the limited computing ability and capacity of storage of wireless handheld devices, it is also extremely challenging to deploy existing web page adaptation engine. By referring to huge computing ability and storage resource of cloud computing infrastructure, a new wireless web access mode is proposed. Firstly, the system framework is present. Subsequently, the two key components of system are described in detail: the one is distributed web page adaptation engine, which is designed for the purpose that the engine can be carried by computing cloud distributed and parallel; the other is distributed web page blocks management based on cloud computing, which is proposed so that the web page adaptation engine can be deployed reasonably. Moreover, a prototype system and a set of evaluation experiments have been implemented.
Introduction
With the rapid development of wireless telecommunication technology and increment of bandwidth, more people are using their wireless handheld devices for web surfing when they are on the move. However, wireless handheld devices with constrained functionality such as small screen, limited computing power and so on, restrict the user oriented QoS provided for wireless web surfing. It is difficult for wireless mobile users to browse large web page designed for PC users comfortably.
Framework
Utilizing huge computing ability and storage capacity of cloud computing infrastructure to carry web page adaptation engine. Figure 1 shows the framework of the whole system. Cloud portal is an interface between wireless end users and original websites. Here, it represents the new service for wireless web accessing. From the system framework, we can conclude that a distributed web page adaptation engine and distributed web page blocks management based on cloud computing must be designed so that the engine can be carried by computing cloud distributed and parallel.
Distributed web page blocks management
After the original web page is split into small blocks and allocated into cloud computing infrastructure by distributed web page adaptation engine, it is important to manage these distributed web page blocks subsequently. To meet the requirement, two issues must be done: data structure definition and page blocks mapping.
(1) Data structure
To manage these distributed web page blocks, a simple Distributed Hash Table (DHT) named Blocks Table is defined to record the blocks
Conclusions and future work
With the evolution of wireless telecommunication technology and information technology, it seems more important to provide wireless users with a swift, convenient, economical, personalized and shining appearance way for web surfing. A new wireless web access mode based on cloud computing infrastructure is proposed in this paper. Compared with existing modes, the scheme makes full use of huge computing ability and storage resource of cloud computing infrastructure, provides a new wireless web access service with more swift and better user experience by experiments.
In the next step, we will focus on optimizing the web page adaptation algorithm for dealing with complex structured web page and strengthening security of cloud computing model.