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JCM
2007

QAM Resource Allocation in Mixed-Format VoD Systems

11 years 9 months ago
QAM Resource Allocation in Mixed-Format VoD Systems
— A Quadrature Amplitude Modulation (QAM) resource allocation algorithm for Video on Demand (VoD) traffic is presented. Based on stream encoding rates and available system capacity, the proposed on-line non-mixing algorithm will select the QAM modulator that maximizes system efficiency in a VoD service group. A discrete event simulator has been developed to compare the performance of the proposed algorithm against two commonly deployed algorithms known as the least-loaded and most-loaded algorithms. Our analysis suggests that the non-mixing algorithm performs better than the two algorithms under a range of assumptions that take into account peak concurrent usage rate and traffic mixture composition. We show 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.
Jiong Gong, David Reed, Terry Shaw, Daniel A. Viva
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2007
Where JCM
Authors Jiong Gong, David Reed, Terry Shaw, Daniel A. Vivanco, Jim Martin
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