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Access control on form-based Web information systems has become one of the useful methods for implementing client systems in a service-oriented architecture. In particular, XForms language is being adopted in many systems as a description language for XML-based user interfaces and server interactions. In this paper, we propose an efficient algorithm for the evaluation of XPath-based access rules for...
The paper describes an application tool that aims to optimize the electricity consumption by rationalizing on the basis of social behavior patterns of users, using game theory optimization and decision theory. The paper describes algorithms used to generate the optimal trade-off consumption, and proposes a game that models electricity consumption of users.
As the development of Internet continues, congestion control has become a major issue to the computer network society. Most of the congestion control schemes fall into two categories : end to end and hop-by-hop (HBH) congestion control schemes. The hop-by-hop algorithm can achieve short delays and quick responses to the congestion situations, and cause no packet loss. It can also minimize the bandwidth...
In India a large proportion of the population lives in the rural areas and if India is to achieve its 10% growth target, its focus has to be on development of these rural areas and addressing their needs and requirements. Bridging of digital divide is one such need which requires immediate attention. Many steps have been taken to bridge the digital divide which includes gyandoot, eseva, bhoomi, echoupals,...
Aggregation of flows into classes is used to avoid the scalability problems of IntServ model and this requires per-class scheduling decisions. There are number of issues associated with such approach e.g. what will be per-flow guarantee, which flows are to be aggregated together, how to determine service order among multiple classes and within a class etc. DiffServ model is a framework wherein class...
Visually impaired people face many obstacles to interact properly with the current screen / visually oriented technologies, as monitors or in using Internet, being destined just for users with good visual ability. This paper refers to a specification of a proposal of an innovative way to safe that obstacle for visually impaired people and provide them a device that will make them understand the normal...
Demand for accessing networks at anytime and from anywhere has been increasing towards the forthcoming ubiquitous society. Users would like to access to their own terminals in homes or companies from the Internet. However, home networks and enterprise networks are usually constructed with private IP addresses, and therefore a NAT necessarily needs to stand on the communication paths. In such an environment,...
Traffic was collected using a simple distributed sensor system in the Internet. The sensors do not initiate or solicit any network activity. The traffic arriving at the sensors, not destined to the honeypots, is classified as illegitimate and analyzed to understand the characteristics of illegitimate traffic in the Internet. The role of distributed sensors in identifying DoS or scanning events is...
In a deregulated system designed to support open access, decision making has to be transparent and it requires participation of many players whose behavior is governed by diverse interests from profitable trade all the way to security in system operation. In particular, we foresee that decision support tools should be so deployed that they can be accessed anywhere and at any time. This led us to work...
Virtual Learning Education (VLE) is a rapidly growing area in Education. Traditional forms of teacher education are transformed, as the Internet becomes a new medium for communication. Traditionally teachers have fulfilled dual roles as presenters of structured information and social agents in the educational process. Students are in need of good interactive resources with learning tools and techniques...
One of the popular wireless network architectures is mobile ad hoc network (MANET) which can be deployed easily in almost any environment, without any underlying backbone and infrastructure support. The MANET Nodes (Routers and Hosts) can move randomly and re-organize themselves into an arbitrary network. Because of the limited range of each hostpsilas wireless transmission, to communicate with hosts...
Here we propose a wireless communication based railway information system will satisfy the requirements of next generation railway information system (RIS). Here we propose the overall implementation scheme for updating running train information in railway information system using wireless technology. The paper aims at enabling deployment of innovative, cost-effective and interoperable wireless communication...
As more and more services and information are made available over the Internet and Intranet, web portals are gaining in popularity and have become extraordinarily complex to test for their functionality. These web portals usually have thousands of hyper links, images, multimedia files, data files, audio files among many others. Web pages are modified frequently viz. adding links, making user specific...
Network mobility (NEMO) basic support protocol (NBS) extends mobile IPv6 to enable mobile network to maintain connectivity when changing its point of attachment to the Internet. However, the use of bi-direction tunnel leads to pinball routing, packet overhead and latency. A localized route optimization scheme for NEMO (LROS) is proposed to solve mobility management and route optimization problems...
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