Lehigh Explorer: A Real Time Video Streaming Application with Mobility Support for Content Centric Networks

With the availability of powerful mobile devices and cellular or WiFi networks with larger bandwidth, users can search and retrieve contents everywhere anytime. Recently content-centric networks have been proposed to provide users with more flexible access to contents than the existing IP-based networks. We have designed secure content centric mobile network (SECON)s that allow users to publish and retrieve contents securely. Unique SECON features include supporting keyword-based content queries, and enhanced attribute-based security approach. In this paper, we describe two new features for SECON, namely real-time video streaming and mobility support. We further describe Lehigh Explorer, an Android application we developed for users to explore different campuses in real-time or virtually. Users of Lehigh Explorer issue keyword based content queries to retrieve data items of interests. They can also retrieve streaming videos of interests while on the move. Our prototype evaluation using GENI test bed showed that the average handoff time for our streaming video service is 732 ms without caching and 101 ms with caching. The energy consumption for supporting video streaming of different qualities using 3 Android-based phones is also reported.