An expressive aspect language for system applications with Arachne
Proceedings of the 4th international conference on Aspect-oriented software development
Traffic reduction in computer networks by agent technology
HSI'09 Proceedings of the 2nd conference on Human System Interactions
An expressive aspect language for system applications with arachne
Transactions on Aspect-Oriented Software Development I
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The rendering mechanism used in Web browsers have a significant impact on the user behavior and delay tolerance of retrieval. The head-of-line blocking phenomena prevents the browser to render partial results within the HTTP document. This phenomena stems from two factors: TCP's in-order data uploading to the browsers and HTML tag matching constraint. We propose a context-aware transportation protocol (CATP) to run on top of UDP. This protocol does not transmit HTML pages in-order. Instead, it reorganizes the pages and transmit HTML tags first before transporting their enclosed data. Conforming browsers receivethe page structures and fill them in with subsequent data packets in whatever sequence they arrive. As a result, lost and delayed packets do not hinder rendering of those that are logically behind but have already arrived at the client sides. Thus the retransmission of the lost framescan be concealed and overall user perceived performance improved. The user-perceivable performance is quantified in terms of silent time during which no activity is observed at the browser display. The protocol also facilitates partial content caching, non-interactive applications of Web services. We validated this protocol through prototype implementationand compared the performance with TCP and in-order delivery UDP schemes. Our protocol provides better user-perceivable performance under various loss loss rates and document sizes.