A bandwidth efficient and proportional fairness video transmission scheme in TV White Space

Video delivery in TV White Space (TVWS) is a challenging task due to the variation of the spectrum availability in TVWS and the stringent bandwidth requirements of video streaming. Most existing frameworks employ an opportunistic spectrum access style which result in bandwidth inefficiency since only one spectrum hole in white space can be used. In this paper, we propose a bandwidth efficient white space video delivery framework. In our framework: firstly, multi-sector structure is employed to improve bandwidth efficiency; secondly, a novel spectrum sensing scheme and an efficient spectrum selection scheme are proposed to obtain optimal spectrum holes based on this structure; thirdly, a optimal resources scheduling scheme is proposed to further improve the system performance. The simulation results demonstrate that the proposed framework can obtain significantly higher bandwidth efficiency and superior video performance than traditional frameworks.

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