An Improved HARQ Mapping Mechanism in LTE-Advanced System

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Changbiao Xu 1,* Shan Lu 1 Yongju Xian 1 Yue Wu 1

1. College of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing, China

* Corresponding author.


Received: 12 Jan. 2011 / Revised: 26 Feb. 2011 / Accepted: 1 May 2011 / Published: 5 Jun. 2011

Index Terms

LTE-Advanced, carrier-aggregation, HARQ


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.

Cite This Paper

Changbiao Xu,Shan Lu,Yongju Xian,Yue Wu," An Improved HARQ Mapping Mechanism in LTE-Advanced System", IJEM, vol.1, no.3, pp.23-28, 2011. DOI: 10.5815/ijem.2012.03.04


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