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Published in:
2006 | OriginalPaper | Chapter
VoD QAM Resource Allocation Algorithms
Authors : Jiong Gong, David Reed, Terry Shaw, Daniel Vivanco, Jim Martin
Publisher: Springer Berlin Heidelberg
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This paper proposes a new Quadrature Amplitude Modulation (QAM) resource allocation algorithm for Video on Demand (VoD) when there is a mixture of standard definition (SD) and high definition (HD) video streams. We have developed a simulation model to compare this algorithm with two popular algorithms: the least-loaded algorithm and the most-loaded algorithm. We show that our algorithm, which we call the non-mixing algorithm, performs signi-ficantly better than the two existing algorithms by accommodating more streams thereby lowering the blocking probabilities under a range of assum-ptions of peak concurrent usage rate and percentage of HD streams. Using computer simulation we found that the non-mixing algorithm leads to an average of 4.39% higher allowed peak usage rate than the least-loaded and most-loaded algorithms.