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Shan Lu

Work place: College of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China

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An Improved HARQ Mapping Mechanism in LTE-Advanced System

By Changbiao Xu Shan Lu Yongju Xian Yue Wu

DOI: https://doi.org/10.5815/ijem.2011.03.04, Pub. Date: 5 Jun. 2011

Based on the analysis of the current hybrid automatic repeat request (HARQ) mapping mechanism and the corresponding problems in LTE-Advanced system with carrier aggregation, this paper designs an improved HARQ mapping mechanism, in which an idea of semi-static mapping is introduced. The simulation results validate its effectiveness in improving system performance through the trade-off between diversity gain and overhead.

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