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http://dx.doi.org/10.5515/JKIEES.2010.10.2.050

Joint Subcarrier Matching, Power Allocation and Bit Loading in OFDM Dual-Hop Systems  

Kong, Hyung-Yun (Department of Electronic Engineering, University of Ulsan)
Lee, Jin-Hee (Department of Electronic Engineering, University of Ulsan)
Publication Information
Journal of electromagnetic engineering and science / v.10, no.2, 2010 , pp. 50-55 More about this Journal
Abstract
Orthogonal Frequency Division Multiplexing(OFDM) dual-hop systems can take full advantages of the techniques of both multi-hop communication and OFDM. To achievethis end, we propose a joint subcarrier matching, power allocation and bit loading algorithm operating under a total power constraint and the same Bit Error Rate(BER) threshold over all subcarriers. Simulation results demonstrated system throughput improvement compared to single-hop systems and dual-hop systems with different bit loading algorithms for each relay position, power constraint, and required BER.
Keywords
Multi-Hop; Subcarrier Matching; Power Allocation; Bit Loading; OFDM;
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1 H. Ochiai, P. Mitran, and V. Tarokh, "Design and analysis of collaborative diversity protocols for wireless sensor networks", IEEE VTC2004-Fall, vol. 7, pp. 4645-4649, Sep. 2004.   DOI
2 N. Ahmed, M. A. Khojastepour, and B. Aazhang, "Outage minimization and optimal power control for the fading relay channel", IEEE Information Theory Workshop, pp. 458-462, Oct. 2004.   DOI
3 F. H. P. Fitzek, M. D. Katz, Cooperation in Wireless Networks: Principles and Applications, Springer, 2006.
4 R. V. Nee, R. Prasad, OFDM for Wireless Multimedia Communications, Artech House, 2000.
5 W. Wang, S. Yan, and S. Yang, "Optimally joint subcarrier matching and power allocation in OFDM multihop system", Eurasip Journal on Advances in Signal Processing, vol. 2008, ArticleID 241378, doi: 10.1155/2008/241278.   DOI
6 S. Nader-Esfahni, M. Afrasiabi, "Simple bit loading algorithm for OFDM-based systems", IET on Commun., vol. 1, pp. 312-316, Jun. 2007.   DOI   ScienceOn
7 A. M. Wyglinski, F. Labeau, and P. Kabal, "Bit loading with BER-constraint for multicarrier systems", IEEE Trans. Wire. Commun., vol. 4, pp. 1383-1387, Jul. 2005.   DOI   ScienceOn
8 Y. George, O. Amrani, "Bit loading algorithms for OFDM", IEEE ISIT, p. 391, 2004.
9 B. Gui, L. J. Cimini, "Bit loading algorithms for cooperative OFDM Systems", Eurasip Journal on Wireless Communications and Networking, vol. 2008, ArticleID 476797, doi: 10.1155/2008/476797.   DOI
10 X. Zang, B. Ottersten, "Power allocation and bit loading for spatial multiplexing in MIMO systems", IEEE ICASSP, vol. 5, pp. V-53-56, 2003.   DOI