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Implementation of EESM algorithm as Fast Link Adaptation in LTE system
Tao Tao 1 * #,Bai Zijian 2
1.School of Information and Electrical Engineering, China University of Mining &Technology
2.Lehrstuhl fur Kommunikationstechnik Universitat Duisburg-Essen
*Correspondence author
#Submitted by
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Funding: none
Opened online:21 February 2010
Accepted by: none
Citation: Tao Tao,Bai Zijian.Implementation of EESM algorithm as Fast Link Adaptation in LTE system[OL]. [21 February 2010] http://en.paper.edu.cn/en_releasepaper/content/40227
 
 
This paper shows Exponential effective SNR mapping (EESM) algorithms implemented as Channel Quality Indicator (CQI) selection technique in LTE system. EESM method utilizes the post processing SINRs (Signal to Interference and Noise Ratio) to compute the effective SNR (Signal to Noise Ratio), then adjusts the transmitted information data rate (modulation scheme and channel coding rate) dynamically to match the prevailing radio channel capacity for each user. From the simulation results we can find that EESM algorithm works stable in the whole system chain and can offer around 25% throughput gain comparing to the lower bound.
Keywords:EESM;Link Adaptation;CQI
 
 
 

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