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Low-Power Frequency Offset Synchronization Block Design and Implementation using Pipeline CORDIC  

Ha, Jun-Hyung (Graduate School, Sangmyung University)
Jung, Yo-Sung (TAMUL Inc.)
Cho, Yong-Hoon (COMESTA Inc.)
Jang, Young-Beom (College of Engineering, Sangmyung University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.10, 2010 , pp. 49-56 More about this Journal
Abstract
In this paper, a low-power frequency offset synchronization structure using CORDIC algorithm is proposed. Main blocks of frequency offset synchronization are estimation and compensation block. In the proposed frequency offset estimation block, implementation area is reduced by using sequential CORDIC, and throughput is accelerated by using 2 step CORDIC. In the proposed frequency offset compensation block, pipeline CORDIC is utilized for area reduction and high speed processing. Through MatLab simulation, function for proposed structure is verified. Proposed frequency offset synchronization structure is implemented by Verilog-HDL coding and implementation area is estimated by Synopsys logic synthesis tool.
Keywords
OFDM; CORDIC; Pipeline; WLAN; Frequency offset synchronization;
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1 J. Granado, A. Torralba, J. Chavez, and V. Baena-Lecuyer, "Design of an efficient CORDIC-based architecture for synchronization in OFDM," IEEE Trans. Consum. Electron., vol. 52, No. 3, pp.774-782, Aug. 2006.   DOI   ScienceOn
2 A. R. S. Bahai, B. R. Saltzberg, and M. Ergen, "Multi-Carrier Digital Communications: Theory and Applications of OFDM", Springer, New York, 2004.
3 K. I. Lee, J. Kim, J. Lee, and Y. S. Cho "A Compact CORDIC Algorithm for Synchronization of Carrier Frequency Offset in OFDM Modems," IEICE Trans. Commun. vol. E89-B, no. 3, pp. 952-954, Mar. 2006.   DOI   ScienceOn
4 IEEE, Wireless MAC and PHY Specifications: High Speed Physical Layer in the 5 GHz Band, P802.11a.D7.0, July 1999.
5 J. J. van de Beek, M. Sandell, and P. O. Borjesson, "ML estimation of time and frequency offset in OFDM systems," IEEE Trans. Signal Process., vol. 45, no. 7, pp. 1800-1805, Jul. 1997.   DOI   ScienceOn
6 Y. H. Hu, "CORDIC-based VLSI architectures for digital signal processing," IEEE Signal Process. Mag., vol.9, pp. 17-35, Jul. 1992.
7 S. Chang and E. J. Powers, "An efficient frequency offset estimation in OFDM-based WALANS systems", Electronics Letters, vol 39, no. 21, pp. 1554-1555, 2003.   DOI   ScienceOn
8 Z. R. Cheng, M. Gao, L. Li, D. Zhang, and Y. Song, "A design of modified CORDIC-based cosine and sine generator." IEEE 5th International Conference on ASIC, vol.2, pp. 765-768, Oct. 2003.