Library

Selected Publications from our Research Group in 2011

     Title A new look at the body area network channel model 

    Authors Dr David Smith and Research Scientist Dr Dino Miniutti

     Where Invited paper at European Conference on Antennas and Propagation 2011

     Summary This paper proposes an explicit trade-off between error and complexity, combined in a goodness-of-fit measure, which is applied to a range of typical body-area-network (BAN) channel data. The paper has the potential for significantly influencing the BAN and radio propagation research communities by providing a method to choose the most appropriate channel models.

    Title Characterising Web-based Video Sharing Workloads 

    Authors Anirban Mahanti and collaborators A., Eager D., Carlsson N., Mitra S., Agrwal M., and A. Yadav

    Where ACM Transactions on the Web

    Summary This work analyses the workload characteristics of four different video sharing services by collecting publicly available meta-data. The analysis identified workload invariants, namely properties that are consistent across the different services irrespective of their user communities or service models. These workload invariants are useful for designing workload models and improving efficiency in web-based video sharing systems.

    Title Environmental Context Aware Trust in Mobile P2P Networks 

    Authors Upendra Rathnayake , Vijay Sivaraman, Roksana Boreli

    Where IEEE Conference on Local Computer Networks , October 2011, Bonn, Germany

    Summary The paper outlines a novel trust mechanism which expands the concept of trust between users in an opportunistic Peer-to-Peer communities by using information from the system, such as co-location, duration of encounters and context-based of use (e.g. business or social). Using this information, new mechanism calculates the trust levels of the peers. Compared to current mechanisms the proposed scheme significantly improves the accuracy of the trust evaluation of peer mobile devices.

     Title Performance of Content Replication in MobiTribe: a Distributed Architecture for Mobile UGC Sharing 

     Authors Kanchana Thilakarathna, Henrik Petander and Aruna Seneviratne

     Where IEEE Conference on Local Computer Networks , October 2011, Bonn, Germany

     Summary This paper proposes a new architecture that, enables the use of the storage capacity of the mobile devices to store information and distribute the content when higher speed lower cost networks such as WiFi networks are available. In so doing, it overcomes the system bottlenecks in 3G cellular networks that is being caused by user-generated content and provides ways of guaranteeing the privacy of the generators of the content.

    Title Insights on Media Streaming Progress using BitTorrent-like Protocols for On-Demand Streaming 

    Authors Anirban Mahanti and collaborators, Williamson, C., Parvez, N., Carlsson, N.

    Where IEEE/ACM Transactions on Networking

    Summary This paper developed analytic models for quantifying performance of peer-assisted video-on-demand streaming systems. The models enable the analysis of popular protocols for distributing content among peers. The insights from the model will help in the development of new protocols that achieve both good scalability and good streaming performance.

    Title Tree-Based Double-Covered Broadcast for Wireless Ad Hoc Networks

    Authors Weisheng Si, Roksana Boreli, Anirban Mahanti, Albert Zomaya

    Where 9th ACM International Workshop on Mobility Management and Wireless Access3 2011, Miami Beach, USA, November 2011

    Summary This paper proposes a new mechanism for broadcasting multimedia streams using wireless ad-hoc networks. Wireless ad-hoc based distribution facilitates multimedia distribution where there are mobile flash crowds such as sporting events. The proposal which uses a novel, tree-based, double-covered, broadcast protocol significantly improves the  efficiency of wireless resource usage while providing a good trade-off between the packet delivery and delay.

Some more resources

NADA Video from TEMPO project

NBN Parkbridge testbed screenshot

Poster from Bridge monitoring project

Badumna in action

Video from SCENT project