The study of adaptive modulation algorithms in OFDM system

Authors:
Yanli Shi;Yanbin Shi;Renxia Ou;Haixia Yu
Affiliations:
Information Countermeasure Department, Air Force Aviation University, Changchun, Jilin, China;Information Countermeasure Department, Air Force Aviation University, Changchun, Jilin, China;Public Health Department, Jilin Medical College, Jilin, Jilin, China;Information Countermeasure Department, Air Force Aviation University, Changchun, Jilin, China
Venue:
ICIC'13 Proceedings of the 9th international conference on Intelligent Computing Theories
Year:
2013

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Abstract

The adaptive modulation techniques is widely used in orthogonal frequency division multiplexing (OFDM) system, this technique can not only improve the utilization efficiency of spectrum, but also the bit error rate performance of system can be significantly improved. Adaptive modulation algorithm is important part in achieving performance improvement, this paper introduces three adaptive bit and power modulation algorithms based on the different allocation principle, and through simulation the paper can comparatively analyze the performance of different algorithms.