Overlay management strategies to improve QoS in peer-assisted live streaming systems

Abstract

With the increase in demand for live streaming services over Internet, Content Delivery Networks (CDN) are overloaded resulting in poor Quality of Service (QoS). To alleviate this problem, peer-assisted live streaming systems are being deployed to take advantage of self-scalability of peer-to-peer (P2P) overlay networks. In peer- assisted live streaming systems, peers retrieve stream content from other peers in the overlay apart from the servers. A major challenge in deploying these systems is to ensure QoS, while dealing with heterogeneity in lifetime and bandwidth of peers. This dissertation presents a few overlay management strategies to improve the QoS of peer-assisted live streaming systems.