Abstract
This paper investigates the problem of multiuser packet scheduling and resource allocation for video transmission over downlink OFDMA networks. A cross-layer approach is proposed to maximize the received video quality under the video quality fairness constraint. Unlike the previous methods in which the objective index is estimated the video quality in the unit of bit, the proposed algorithm develops the objective index in unit of packet, which is more fit for video transmission. In order to solve the optimization problem, a suboptimal algorithm of joint packet scheduling and resource allocation is proposed. The algorithm is compatible with the emerging wireless standards, such as IEEE 802.16. The simulation results show that the proposed method outperforms the conventional resource allocation schemes in terms of received video qualities and quality fairness.
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Acknowledgements
This work was supported in part by National Science and Technology Major Project 2010ZX03005-003, National Natural Science Foundation of China 61001095, National Hi-Tech Research and Development Plan of China under Grant 2009AA01180 and the Fundamental Research Funds for the Central Universities.
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Li, F., Ren, P. Joint packet scheduling and resource allocation with quality fairness for wireless VoD system. Telecommun Syst 53, 139–146 (2013). https://doi.org/10.1007/s11235-013-9687-0
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DOI: https://doi.org/10.1007/s11235-013-9687-0