Browse > Article
http://dx.doi.org/10.6109/jkiice.2017.21.3.523

Tx/Rx-ordering-aided efficient sphere decoding for generalized spatial modulation systems  

Lee, Hyeong-yeong (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Park, Young-woong (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Kim, Jong-min (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Moon, Hyun-woo (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Lee, Kyungchun (Department of Electrical and Information Engineering, Seoul National University of Science and Technology)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.3, 2017 , pp. 523-529 More about this Journal
Abstract
In this paper, we propose an efficient sphere decoding scheme that reduces computational complexity by combining receive and transmit ordering techniques in generalized spatial modulation systems, where the indexes of activated transmit antennas as well as the transmit symbols are exploited to transfer information to the receiver. In this scheme, the receive signals are optimally ordered so that the calculation for a candidate solution outside the sphere is terminated early to lower the computational complexity. In addition, the transmit ordering technique is applied to first search for candidate symbols and activated antennas having higher probabilities to further reduce the computational complexity. Simulation results show that the proposed doubly ordered sphere decoding scheme provides the same bit error rate performance with the conventional sphere decoding method and the sphere decoder employing only the receive ordering technique while it requires lower computational complexity.
Keywords
Multiple Input Multiple Output; Spatial Modulation; Generalized Spatial Modulation; Sphere Decoding; Ordering;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 B. Hassibi and H. Vikalo, "On the Sphere-Decoding Algorithm 1. Expected Complexity," IEEE Transactions on Signal Processing, vol. 53, no. 8, pp. 2806-2818, Aug. 2005.   DOI
2 A. Younis, R. Mesleh, H. Haas and P. M. Grant, "Reduced Complexity Sphere Decoder for Spatial Modulation Detection Receivers," Proceedings of the IEEE Global Telecommunications Conference, Dec. 2010, pp. 1-5.
3 E. Viterbo and J. Boutros, "A universal lattice code decoder for fading channels," IEEE Transactions on Information Theory, vol. 45, no. 7, pp. 1639-1642, July 1999.   DOI
4 A. Younis, S. Sinanovic, M. D. Renzo, R. Mesleh, and H. Haas, "Generalised sphere decoding for spatial modulation," IEEE Transactions on Communications, vol. 61, no. 7, pp. 2805- 2815, July 2013.   DOI
5 E. Jeon, S. Yoon, J. Lee, D. Woo, and K. Lee "A Low- Complexity Sphere Decoding Algorithm for Generalized Spatial Modulation," Journal of the Korea Institute of Information and Communication Engineering, vol. 20, pp. 30-36, Jan. 2016.   DOI
6 K. Lee, "Doubly Ordered Sphere Decoding for Spatial Modulation," IEEE Communications. Letters, vol. 19, no. 5, pp. 795-798, May 2015.   DOI
7 D. Tse and P. Viswanath, Fundamentals of Wireless Communication, Cambridge University Press, Cambridge, UK, 2005.
8 M. Di Renzo, H. Haas, A. Ghrayeb, A. Sugiura, and L. Hanzo, "Spatial modulation for generalized MIMO: challenges, opportunities, and implementation," Proceedings of the IEEE, vol. 102, no. 1, pp. 56-103, Jan. 2014.   DOI
9 A. Younis, N. Serafimovski, R. Mesleh, and H. Haas, "Generalised spatial modulation," in Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, USA, pp. 1498-1502, Nov. 2010.