Adaptive Bit Allocation Algorithm for OFDM System

Wei Wei; Wen Dong An

doi:10.4028/www.scientific.net/AMR.989-994.2161

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 989-994Adaptive Bit Allocation Algorithm for OFDM System

Adaptive Bit Allocation Algorithm for OFDM System

Abstract:

For the greedy algorithm required a large number of iterations, this paper proposed one adaptive bit allocation algorithm based on Hughes-Hartogs algorithm which was improved greedy algorithm .Under the constraint of bit error rate and data transmission rate, the algorithm first used the Chow algorithm to allocate some of the bits, and then used the greedy algorithm to allocate the remaining bits. When minimize the total power by this algorithm, the iterations of this algorithm were significantly less than the greedy algorithm. By computer simulation, the results showed that performance of this algorithm was very close to the greedy algorithm, and the number of this algorithm’s iterations was 7.4%~34% of the greedy algorithm.

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Periodical:

Advanced Materials Research (Volumes 989-994)

Pages:

2161-2164

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.989-994.2161

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Online since:

July 2014

Authors:

Wei Wei*, Wen Dong An

Keywords:

Adaptive, Bit Allocation, Greedy Algorithm, OFDM

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References

[1] D. Hughes-Hartogs, Ensemble modem structure for imperfect transmission media: U. S, 4679227. 1987-07.

Google Scholar

[2] Chow Peter S, John M Bingham, and John A C. A practical discrete multitone transceiver loading algorithm for data transmission over spectrally shaped channels. IEEE Trans. On Communications (S0090-6778), 1995, 43(2): 773-775.

DOI: 10.1109/26.380108

Google Scholar

[3] G. D. Yu, Z. Y. Zhang, and P. L. Qiu, Bit and Power Allocation Algorithm for OFDM System, Phil. Journal of Electronics & Information Technology, vol. 27, pp.1479-1482, (2005).

Google Scholar

[4] L. Yang, and Y. A. Zhang, Analysis of Adaptive Loading Algorithms in Orthogonal Frequency Division Multiplexing Systems, Phil. Journal of System Simulation, vol. 21, pp.761-767, (2009).

Google Scholar

[5] S. S. Zhai, Power Allocation over Frequency Selective Channel in OFDM System, Phil. Communications Technology, vol. 44, pp.19-23, (2011).

Google Scholar

[6] L. Zhao, X. P. Sun, and H. L. Zhang, An Improved Water-filling Algorithm for Discrete Bit Allocation, Phil. Journal of Electronics & Information Technology, vol. 32, pp.638-642, (2010).

DOI: 10.3724/sp.j.1146.2009.00328

Google Scholar

[7] Y. M. Wang, Key technology and application of OFDM. Beijing: China Machine Press, (2006).

Google Scholar

[8] X. Wu, J. Zhang, and Z. K. Liu, Bit and power allocation algorithm based on preload in OFDM system, Phil. Journal of Harbin Institute of Technology, vol. 44, pp.132-137, (2012).

Google Scholar