Paper Info
Title
A Proxy-Based System For Dynamic Content Negotiation And Collaborative Optimization In Heterogenic Environments
Abstract
Ubiquitous and Pervasive Computing relies on ubiquitous network access and applications' context-awareness. This pervasive access implies exchanging traffic with a wide spectrum of devices across heterogenic networks. Services and applications deployed on these networks should adapt its operation and presentation to the characteristics of the underlying network technologies and the actual client device capabilities. Cellular wide area networks like UMTS are used as Internet access networks for particular users but, in some cases, they can also be employed to provide Internet access to other smaller networks. The main inconvenient is that cellular networks have not the same bandwidth as wired networks and therefore, the cellular channel becomes a network bottle-neck. To help to mitigate this situation and in order to improve the user's experience different optimization techniques exist, especially in web traffic. This paper studies the existing synergies at HTTP layer between device capabilities expression, content negotiation, channel optimization and content adaptation. And secondly, it presents a system where HTTP requests transmission is optimized by means of HTTP header reduction over the cellular channel, showing a significant improvement in response time. In order to allow content negotiation, headers should be restored when reaching the Internet. This dynamic header reconstruction allows giving enriched and more expressive information about user's device and browser capabilities. Thus navigation speed and user's QoE can be enhanced by means of dynamic content negotiation in order to obtain adapted and lighter content and responses from web servers and adaptation proxies alike.
Year
DOI
Venue
2010
10.1080/10798587.2010.10643100
INTELLIGENT AUTOMATION AND SOFT COMPUTING
Keywords
Field
DocType
context-awareness, HTTP optimization, pervasive computing, ubiquitous web, content negotiation, profiling, device capabilities
Web traffic,Content negotiation,UMTS frequency bands,Computer science,Computer network,Context awareness,Context-aware pervasive systems,Cellular network,Ubiquitous computing,Internet access
Journal
Volume
Issue
ISSN
16
4
1079-8587
Citations 
PageRank 
References 
2
0.37
6
Authors
4
Name
Order
Citations
PageRank
Xavier Sanchez-Loro1172.53
Victoria Beltran2376.54
Jordi Casademont313114.60
maria luisa catalan cid4344.60