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Low Power Symbol Detector for MIMO Communication Systems  

Hwang, You-Sun (School of Electronics, Telecommunication and Computer Eng., Korea Aerospace University)
Jang, Soo-Hyun (School of Electronics, Telecommunication and Computer Eng., Korea Aerospace University)
Jung, Yun-Ho (School of Electronics, Telecommunication and Computer Eng., Korea Aerospace University)
Abstract
In this paper, an low power symbol detector is proposed for MIMO communication system with two transmit and two receive antennas. The proposed symbol detector can support both the spatial multiplexing (SM) mode and spatial diversity (SD) mode for MIMO transmission technique, and shows the optimal maximum likelihood (ML) performance. Also, by sharing the hardware block and using the dedicated clock MIMO modes, the power of the proposed architecture is dramatically decreased. The proposed symbol detector was designed in hardware description language (HDL) and synthesized to logic gates using a $0.13-{\mu}m$ CMOS standard cell library. The power consumption was estimated by using Synopsys Power CompilerTM, which is reduced by maximum 85%, compared with the conventional architecture.
Keywords
MIMO; ML; Spatial Diversity; Spatial Multiplexing; Symbol Detector;
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1 A. F. Naguib, N. Seshadri, and A. R. Calderbank, "Increasing data rate over wireless channel," IEEE Signal Process. Mag., vol. 17, no. 2, pp. 744-765, Mar. 1998.
2 H. Sampath, S. Talwar, J. Tellado, V. Erceg, and A. Paulraj, "A fourth-generation MIMO-OFDM: broadband wireless system: Design, performance, and field trial result," IEEE Commun. Mag., vol. 40, no. 9, pp. 143-149, Sept. 2002.   DOI   ScienceOn
3 A.van Zelst, Tim C. W. Schenk, "Implementation of a MIMO OFDM-Based wireless LAN system," IEEE Trans. on Signal Processing, vol. 52, no. 2, pp. 483-494, Feb. 2004.   DOI   ScienceOn
4 G. L. Stuber, J. R. Barry, S. W. McLaughlin, Y. Li, M. A. Ingram, and T. H. Pratt, "Broa- dband MIMO-OFDM wireless communications- ations," Proc. IEEE, vol. 92, no. 2, pp. 271-297, Feb. 2004.   DOI   ScienceOn
5 V. Tarokh, H. jafarkhani, and A. R. Calderbank, "Space-time block codes from orthogonal design," IEEE Trans. Inf. Theory, vol. 45, no. 5, pp. 1456-1467, July 1999.   DOI   ScienceOn
6 H. Bolcskei and E. Zurich, "MIMO-OFDM wireless systems: basics, perspectives, and challenges," IEEE Trans. Wireless Commun., vol. 13, no. 4, pp. 31-37, Aug. 2006.   DOI   ScienceOn
7 Y. Jung, "Design and Implementation of effici- ent symbol detector," 전자공학회논문지 제 45권 SD편 제 10호, pp. 1024-1031, 2008. 10.   과학기술학회마을
8 M. Cho, Y. Jung, J. Kim, "An Efficient Symbol Timing Synchronization Scheme for IEEE 802.11n MIMO-OFDM based WLAN Systems," 전자공학회논문지 제 46권 TC편 제 5호, pp. 549-567, 2009. 5.   과학기술학회마을
9 J. Kim, Y. Kim, K. Kim, "Computationally ef- ficient signal detection method for next gener- ation mobile communications using multiple antennas," SK Telecommun. Review, vol. 17, no 1C, pp.183-191, Feb. 2007.
10 IEEE Std. 802.11n, "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications," 2009.
11 IEEE Std. 802.16e, "Local and Metropolitan Area Networks-Part 16: Air Interface for Fixed Broad -band Wireless Access System", Oct. 2004.