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Topic: An investigation of large scale challenges with live video streaming over Wi-Fi access networks
Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, Department of Telematics.
2014 (English)MasteroppgaveStudent thesis
Abstract [en]

Due to growing demand for wireless access technology (802.11 stan dards), high capacity multimedia transmission over wireless pose a chal lenge, by taking note that video streaming has gained enormous popularity and is accountable for a large fraction of current internet traffic.In order to have a satisfy video transmission wireless network especially when it comes to large scale user and roaming intensity, many requirement must be considered. Large throughput and minimum delay are the significant requirements to keep the transaction stable and seamless, moreover jitter is another important factor that can result in degradation and quality of received video. To achieve seamless live video stream and high level of quality of service (QoS) and quality of experience (QoE) different technologies must be studied, such as video encoding/decoding platform, transmission tech nology (unicast/multicast) mobility models and efficient handoff method. These issues are addressed in this project. During this work, several experiments are done in NS2 simulator to study the impact of increasing in number of users on the QoS parameters such as delay, throughput and jitter, while an H.264 SVC video stream id transmit over the wireless network in both multicast and unicast manner. Also, the effect of Random Waypoint and Gauss-Markov mobility model on the delivering performance studied. The experiments tested during movement inside an AP coverage area as well as movement to new AP domain (Handoff). Hierarchical Mobile IPv6 is the protocol used in the simulation, in order to have a faster handoff and reduction in the amount of signaling load.

Place, publisher, year, edition, pages
Institutt for telematikk , 2014. , 104 p.
URN: urn:nbn:no:ntnu:diva-25561Local ID: ntnudaim:10498OAI: diva2:736654
Available from: 2014-08-07 Created: 2014-08-07 Last updated: 2014-08-07Bibliographically approved

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