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Rema Padmanabhan

Bio: Rema Padmanabhan is an academic researcher from Wipro. The author has contributed to research in topics: The Internet & Web server. The author has an hindex of 1, co-authored 1 publications receiving 4 citations.
Topics: The Internet, Web server, Cache, Web page, Web cache

Papers
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Proceedings ArticleDOI
26 Feb 2010
TL;DR: The utilization of mobile agents are proposed to increase the performance in maintaining the consistency of web caches by exploiting the potential benefits of agent technology over this domain and analyzes its usage in increasing the performance.
Abstract: This paper proposes the utilization of mobile agents to increase the performance in maintaining the consistency of web caches. Most popular browsers like Internet Explorer and Netscape are providing options to cache the frequently used web pages in the client sites itself in order to provide faster access to the clients and to reduce the network overhead due to the reduction in number of messages transferred. In this environment, the difficulty is in maintaining the web caches in a consistent state by updating the web pages that are cached. This paper addresses this issue by exploiting the potential benefits of agent technology over this domain and analyzes its usage in increasing the performance. The performance is optimized in terms of reduction in the network load and reduction in the response time to the clients.

4 citations


Cited by
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Journal ArticleDOI
Wenzheng Xu1, Weigang Wu1, Hejun Wu1, Jiannong Cao, Xiaola Lin1 
TL;DR: The proposed CACC, a cooperative approach to maintain cache consistency for wireless mesh networks, combines push and pull by making use of the hierarchical architecture of mesh networks and can save message cost significantly.
Abstract: Cooperative caching is a desirable approach to achieve efficient data access in multi-hop wireless networks. Existing cooperative caching algorithms mostly focus on cache placement. Another key issue, cache consistency, has not been adequately addressed. In this paper, we propose CACC, a cooperative approach to maintain cache consistency for wireless mesh networks. CACC combines push and pull by making use of the hierarchical architecture of mesh networks. The key contribution of CACC lies in two techniques that introduce cooperation among network nodes in delivering invalidation reports (IRs) so as to reduce communication cost and tolerate message losses. The first technique, IR integration, buffers and merges IRs at gateway nodes and periodically broadcasts them. The second technique, cooperative IR re-sending, lets intermediate nodes resend missed IR messages upon request. The interval of IR broadcast is optimized to achieve the optimal tradeoff between push and pull. We conduct numerical analysis to find optimal values for different scenarios. We also perform simulation to confirm our analysis results and compare with existing approaches. The results show that CACC can save message cost significantly (50-70 percent).

3 citations

01 Jan 2012
TL;DR: Analysis and experimental results prove the effectiveness of DMS, but also show bigger processor and memory load on servers and clients.
Abstract: In this paper we consider the problem of improving Web performance and propose an efficient differencing and merging system (DMS) based on an HTTP protocol extension. To provide for faster information exchange over the Web, the system tries to transfer only computed differences between requested documents and previously retrieved documents from the same site. Analysis and experimental results prove the effectiveness of DMS, but also show bigger processor and memory load on servers and clients. DMS is compatible with most of the existing solutions for improving Web performance. Moreover, SSL security system may be used to provide Web privacy and authenticity. The DMS model is simple to use and can be relatively easily integrated in Web servers and browsers.

2 citations

Proceedings ArticleDOI
01 Nov 2011
TL;DR: Analysis and experimental results prove the effectiveness of DMS, but also show bigger processor and memory load on servers and clients.
Abstract: In this paper we consider the problem of improving Web performance and propose an efficient differencing and merging system (DMS) based on an HTTP protocol extension. To provide for faster information exchange over the Web, the system tries to transfer only computed differences between requested documents and previously retrieved documents from the same site. Analysis and experimental results prove the effectiveness of DMS, but also show bigger processor and memory load on servers and clients. DMS is compatible with most of the existing solutions for improving Web performance. Moreover, SSL security system may be used to provide Web privacy and authenticity. The DMS model is simple to use and can be relatively easily integrated in Web servers and browsers.

1 citations

01 Jan 2012
TL;DR: The algorithm is first illustrated by manually partitioning a web page, then the implementation of the algorithm using PHP is described, which results in a partitioned web page consisting of small pieces or fragments which can be retrieved concurrently using AJAX or similar technology.
Abstract: In this paper, we introduce a method for the dynamic partitioning of web pages. The algorithm is first illustrated by manually partitioning a web page, then the implementation of the algorithm using PHP is described. The method results in a partitioned web page consisting of small pieces or fragments which can be retrieved concurrently using AJAX or similar technology. The goal of this research is to increase performance of web page delivery by decreasing the latency of web page retrieval.