TY - GEN
T1 - QoE-based cross-layer optimization for video delivery in long term evolution mobile networks
AU - Shehada, Mohammed
AU - Thakolsri, Srisakul
AU - Despotovic, Zoran
AU - Kellerer, Wolfgang
PY - 2011
Y1 - 2011
N2 - In this paper, we apply a Quality of Experience (QoE) based Cross-Layer Optimization (CLO) framework for efficiently allocating the network resources for video delivery in LTE mobile networks. Conventionally, the objective function aims to maximize the average user-perceived quality of all users by jointly optimizing the application layer and the lower layers of the radio communication system. We extend the conventional objective function by a new constraint that allows the network operator to set its policy to provide the video service with a target average video quality. The Mean Opinion Score (MOS) is used to indicate the user satisfaction of the video service. A comparison between our approach, an Application-Layer Rate Adaptation (ALRA) and a non-optimized LTE system is done by performing simulations using an OPNET LTE simulator. Results show that our QoE-based approaches lead to significant improvements of user-perceived quality, and additionally to significant bandwidth savings in the case of target mean MOS approach.
AB - In this paper, we apply a Quality of Experience (QoE) based Cross-Layer Optimization (CLO) framework for efficiently allocating the network resources for video delivery in LTE mobile networks. Conventionally, the objective function aims to maximize the average user-perceived quality of all users by jointly optimizing the application layer and the lower layers of the radio communication system. We extend the conventional objective function by a new constraint that allows the network operator to set its policy to provide the video service with a target average video quality. The Mean Opinion Score (MOS) is used to indicate the user satisfaction of the video service. A comparison between our approach, an Application-Layer Rate Adaptation (ALRA) and a non-optimized LTE system is done by performing simulations using an OPNET LTE simulator. Results show that our QoE-based approaches lead to significant improvements of user-perceived quality, and additionally to significant bandwidth savings in the case of target mean MOS approach.
UR - http://www.scopus.com/inward/record.url?scp=83655181474&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:83655181474
SN - 9781457717864
T3 - 2011 the 14th International Symposium on Wireless Personal Multimedia Communications: Communications, Networking and Applications for the Internet of Things, WPMC'11
BT - 2011 the 14th International Symposium on Wireless Personal Multimedia Communications
T2 - 2011 14th International Symposium on Wireless Personal Multimedia Communications: Communications, Networking and Applications for the Internet of Things, WPMC'11
Y2 - 3 October 2011 through 7 October 2011
ER -