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In this paper, the characteristics of five main subjective weighting methods for multi-attribute decision making problems are analyzed by means of horizontal and longitudinal comparison. And the five weighting methods are applied to the field of broadcasting and television program evaluation respectively to obtain the evaluation results calculated by five methods and analyze the relationship between...
The traditional ratings survey method has various problems under the environment of ‘media integration’, such as the form unitarily and no in-depth analysis. For these problems, this paper presents a comprehensive cross-platform television program evaluation system. This comprehensive evaluation system has the characteristics of multi-service targets, multi-platform, multi-method, multi-dimensional,...
We consider a base-station broadcasting a set of order-insensitive packets to a user population over packet-erasure channels. To improve efficiency we propose a relay-aided transmission scheme using instantaneously-decodable binary network coding. Our proposed scheme ensures that a coded packet can be immediately decoded at the user side without delay. Moreover, only binary operations are required...
We investigate a relay-aided multi-cell broadcasting system using random network codes, where the focus is on devising efficient scheduling algorithms between relay and base stations. Two scheduling algorithms are proposed based on different feedback strategies; namely, a one-step scheduling algorithm with instantaneous feedback for each redundancy packet; and a multi-step scheduling algorithm with...
It has been shown in the literature that network coding can improve the transmission efficiency of wireless broadcasting as compared to traditional ARQ schemes. In this paper, we propose an improved network coding scheme that can asymptotically achieve the theoretical lower bound on transmission overhead for a sufficiently large number of information blocks. The proposed scheme makes use of an index...
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