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Proceedings Paper

Study on the optimum power allocation algorithm based on adaptive allocation technology
Author(s): Ming Yang; Zhendong Li; Weiguo Di; Xiaoping Wang
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Paper Abstract

According to the instantaneous estimate of sub-channel, adaptive allocation technology dynamically allocated number of bits transmitted and the transmit power, optimizing the overall performance of OFDM system. Having described the two basic principles of adaptive power allocation in the OFDM, and on the basis of this principle detailedly discussed three kinds of algorithms: adaptive bit allocation algorithm that is based on the capacity optimization, optimum power allocation algorithm based on the best bit error rate and the second-best power distribution algorithm. Through the system simulation using MATLAB software, characteristics and performance of three kinds of algorithms are analyzed and compared, which are in different channels and environments . Simulation results show that adaptive allocation technology can optimize the capacity of the system and bit error rate.

Paper Details

Date Published: 29 October 2011
PDF: 4 pages
Proc. SPIE 8205, 2011 International Conference on Photonics, 3D-Imaging, and Visualization, 82050K (29 October 2011); doi: 10.1117/12.906098
Show Author Affiliations
Ming Yang, Shijiazhuang Tiedao Univ. (China)
Zhendong Li, Basic Education Dept. Tangshan (China)
Weiguo Di, Shijiazhuang Tiedao Univ. (China)
Xiaoping Wang, Shijiazhuang Tiedao Univ. (China)


Published in SPIE Proceedings Vol. 8205:
2011 International Conference on Photonics, 3D-Imaging, and Visualization
Egui Zhu, Editor(s)

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