Secure and scalable model for video on demand in cloud environment

Abstract

The research work reported in this thesis is focused on the development of distributed service models for Video on Demand, especially Video on Demand as a Service (VoDaaS) in the cloud environment. It is also aimed to eliminate movie piracy issues and to provide smooth and lively streaming of videos to clients in a cost-effective manner, thereby moving on to the new concept of Cloud Cinemas . The conceptual Web Service Architectural model for the VoD system that consists of policies, resources, services and messages, is presented by including the lifecycle for video service interaction and the relationship between the key modules of the video service. The distributed service models for Video on Demand system, which have been designed and implemented using JAX-RPC and SOAP communication methodologies adopt download and play approach with reduced retrieval time and without memory constraints. A MulticastMessageContext with MulticastMessageReceiver is introduced in the SOAP communication model to support unicast as well as multicast of video data as per the client requirements. This model makes the existing one request - one response message exchange pattern as one request - many responses message exchange pattern and inherently reduces the bandwidth requirements. The above distributed services are extended to cloud environment to provide cost effective Video on Demand services. The Round Trip Time is measured for all the distributed services proposed for Video on Demand system where the clients are requesting the video files of different sizes. The cloud model for Video on Demand as a Service simulates the real theatre environment wherein the full control including the rewinding, fast forward, play and stop is with the distributors. newlineThe performance measures like RTT, throughput, upload time and download time of video files of various sizes are accessed and assessed for the proposed Video on Demand as a Service model. newline newline