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Dive into the research topics where Venugopal Vasudevan is active.

Publication


Featured researches published by Venugopal Vasudevan.


ACM Transactions on Multimedia Computing, Communications, and Applications | 2013

A framework for network aware caching for video on demand systems

Bogdan Carbunar; Rahul Potharaju; Michael Pearce; Venugopal Vasudevan; Michael L. Needham

Video on Demand (VoD) services allow users to select and locally consume remotely stored content. We investigate the use of caching to solve the scalability issues of several existing VoD providers. We propose metrics and goals that define the requirements of a caching framework for CDNs of VoD systems. Using data logs collected from Motorola equipment from Comcast VoD deployments we show that several classic caching solutions do not satisfy the proposed goals. We address this issue by developing novel techniques for predicting future values of several metrics of interest. We rely on computed predictions to define the penalty imposed on the system, both network and caching sites, when not storing individual items. We use item penalties to devise novel caching and static content placement strategies. We use the previously mentioned data logs to validate our solutions and show that they satisfy all the defined goals.


Archive | 2016

Infiltrating Social Network Accounts: Attacks and Defenses

Rahul Potharaju; Bogdan Carbunar; Mozhgan Azimpourkivi; Venugopal Vasudevan; S. Sitharama Iyengar

Social networks collect and make public an unprecedented amount of user location information. This raises significant user privacy concerns. In this chapter, we describe social networking infiltration attacks, where adversaries befriend random victims of their choice and acquire access to their private information. To address this problem, we propose verification mechanisms that use location information certified by geosocial networks to quantify the context shared by a user and an inviter. We develop novel visual notifications that leverage the outcome of the proposed verifications to inform users about the context they share with inviters. The impact of location information makes it however vulnerable to attacks: users can rely on existing tools to report fraudulent locations. We describe venue centric location verification solutions that are resilient to powerful adversaries.


consumer communications and networking conference | 2007

Cache & Carry: Seamless Content Consumption in an Intermittently Connected World

Michael Pearce; Rohit Chaudhri; Jay R. Almaula; Venugopal Vasudevan

Even as mobile devices as well as wireless networks become increasingly capable, newer content-intensive application place increasing demands on the resources of these devices. Some of these applications make conflicting resource demands making it difficult for device platforms to guarantee acceptable user experience. Thus, a resource aware middleware is needed that mobile applications can leverage to manage their content. In this paper we discuss Cache & Carry, a framework for mobile devices that intelligently manages scarce resources on the mobile device across multiple applications. The framework takes into consideration changing mobile device characteristics such as available battery and storage as well as changing network characteristics such as availability of multiple networks, their perceived cost, their available bandwidths etc., to provide an optimal end user experience.


Archive | 2002

Contextual information management in wireless communications devices and methods therefor

Frederick Rohles; Venugopal Vasudevan; Joseph F. Wodka


Archive | 2002

System and method for rendering content on multiple devices

Venugopal Vasudevan; Jayanth P. Mysore; Anwar M. Haneef; Jay R. Almanula


Archive | 2004

A method and apparatus for managing wireless mobile terminals

Sandeep Adwankar; Nitya Narasimhan; Venugopal Vasudevan


Archive | 2006

Method for energy efficient prospective peer discovery in an ad hoc network

Loren J. Rittle; Tzvetan T. Horozov; Nitya Narasimhan; Venugopal Vasudevan


Archive | 2004

Device and method for service discovery in adhoc networks using beacon signalling

Loren J. Rittle; Nitya Narasimhan; Venugopal Vasudevan


Archive | 2005

Location-based recommendation system

Tzvetan T. Horozov; Nitya Narasimhan; Venugopal Vasudevan


Archive | 2008

System and Method for Creating Media Bookmarks from Secondary Device

Venugopal Vasudevan; Tzvetan T. Horozov; Andrew John Aftelak

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Bogdan Carbunar

Florida International University

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