Worcester Polytechnic Institute Electronic Theses and Dissertations Collection

Title page for ETD etd-052610-164139

Document Typethesis
Author NameVedagiri Seenivasan, Thangam
TitleCStream: Neighborhood Bandwidth Aggregation For Better Video Streaming
DepartmentComputer Science
  • Mark Claypool, Advisor
  • Bob Kinicki, Reader
  • Keywords
  • Bandwidth aggregation
  • Video streaming
  • Date of Presentation/Defense2010-05-18
    Availability unrestricted


    Video streaming is an increasingly popular Internet application. However, despite its popularity, real-time video streaming still remains a challenge in many scenarios. Limited home broadband bandwidth and mobile phone 3G bandwidth means many users stream videos at low quality and compromise on their user experience. To overcome this problem, we propose CStream, a system that aggregates bandwidth from multiple co-operating users in a neighborhood environment for better video streaming. CStream exploits the fact that wireless devices have multiple network interfaces and connects co-operating users with a wireless ad-hoc network to aggregate their unused downlink Internet bandwidth to improve video quality. CStream dynamically generates a streaming plan to stream a single video using multiple connections and continuously adapts to changes in the neighborhood and variations in the available bandwidth. We have built CStream and evaluated it on a controlled test-bed of computers with various performance measures. The results show linear increase in throughput and improved video streaming quality as the number of cooperating users in a neighborhood increase.

  • tvedagiriseenivasan.pdf

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