DOI QR코드

DOI QR Code

Generalized Quaternary Quasi-Orthogonal Sequences Spatial Modulation

일반화한 쿼터너리 준직교 시퀀스 공간변조 기법

  • Shang, Yulong (Chonnam National University Department of Electronics and Computer Engineering) ;
  • Kim, Hojun (Chonnam National University Department of Electronics and Computer Engineering) ;
  • Jung, Taejin (Chonnam National University Department of Electronics and Computer Engineering)
  • Received : 2015.12.07
  • Accepted : 2016.04.21
  • Published : 2016.04.30

Abstract

So called quaternary quasi-orthogonal sequence spatial modulation (Q-QOS-SM) has been presented with an advantage of improved throughputs compared to the conventional SM and generalized spatial modulation (GSM) by virtue of a larger set size of QOSs and its minimized correlation value between these QOSs. However the Q-QOS-SM has been originally invented for limited transmit antennas of only powers of two. In this paper, by extending the Q-QOS-SM to any number of transmit antennas, we propose a generalized Q-QOS-SM, referred as G-QO-SM. Unlike the conventional Q-QOS-SM using the Q-QOSs of length of any power of two, the proposed G-QO-SM is constructed based on the Q-QOSs of only the lengths of 2 and 4. The proposed scheme guarantees the transmission of the total $N_t$ spatial bits with $N_t$ transmit antennas, and thus achieves greatly higher throughputs than the other existing schemes including the SM, GSM, Q-QOS-SM, Quadrature-SM, and Enhanced-SM. The performance improvements of the proposed G-QO-SM is justified by comparing the analytically derived BER upper bounds and also the exact Monte Carlo simulation results.

Keywords

References

  1. S. M. Alamouti, "A simple transmit diversity technique for wireless communications," IEEE J. Sel. Areas Commun., vol. 16, pp. 1451-1458, Oct. 1988.
  2. V. Tarokh, N. Seshadri, and A. R. Calderbank, "Space-time codes for high data rate wireless communication: Performance criterion and code construction," IEEE Trans. Inf. Theory, vol. 44, no. 2, pp. 744-765, Mar. 1988.
  3. V. Tarokh, N. Seshadri, and A. R. Calderbank, "Space-time block codes from orthogonal designs," IEEE Trans. Inf. Theory, vol. 45, no. 5, pp. 1456-1467, Jul. 1999. https://doi.org/10.1109/18.771146
  4. P. Wolniansky, G. Foschini, G. Golden, and R. Valenzuela, "V-blast: an architecture for realizing very high data rates over the rich-scattering wireless channel," in Proc. ISSSE 1998, pp. 295-300, Pisa, Italy, Oct. 1998.
  5. H. J. Kim, J. H. Kim, T. J. Jung, and C. S. Kim, "New spatial-multiplexing scheme for erasure fading channels," J. KICS, vol. 35, no. 11, pp. 1045-1050, Nov. 2010.
  6. R. Mesleh, H. Haas, C. W. Ahn, and S. Yun, "Spatial modulation - A new low complexity spectral efficiency enhancing technique," in Proc. CHINACOM 2006, pp. 1-5, Beijing, China, Oct. 2006.
  7. R. Mesleh, H. Haas, S. Sinamovic, C. W. Ahn, and S. Yun, "Spatial Modulation," IEEE Trans. Veh. Technol., vol. 57, no. 4, pp. 2228-2241, Jul. 2008. https://doi.org/10.1109/TVT.2007.912136
  8. R. Rajashekar, K. V. A. Hari, and L. Hanzo, "Reduced-complexity ML detection and capacity-optimized training for spatial modulation systems," IEEE Trans. Commun., vol. 62, no. 1, pp. 112-125, Jan. 2014. https://doi.org/10.1109/TCOMM.2013.120213.120850
  9. A. Younis, N. Serafimovski, R. Mesleh, and H. Haas, "Generalised spatial modulation," in Proc. ASILOMAR, pp. 1498-1502, Pacific Grave, CA, Nov. 2010.
  10. H. J. Kim, Y. L. Shang, and T. J. Jung, "A new spatial modulation scheme based on quasi-orthogonal sequences," in Proc. IEEE Int. Conf. Cons. Electorn., pp. 519-520, Las Vegas, USA, Jan. 2015.
  11. K. C. Yang, Y. K. Kim, and P. V. Kumar, "Quasi-orthogonal sequences for code-division multiple-access systems," IEEE Trans. Inf. Theory, vol. 46, no. 3, pp. 982-993, May 2000. https://doi.org/10.1109/18.841175
  12. Y. H. Kim, K. W. Cheun, and K. C. Yang, "A bandwidth-power efficient modulation scheme based on quaternary quasi-orthogonal sequences," IEEE Commun. Lett., vol. 7, no. 6, pp. 293-295, Jun. 2003. https://doi.org/10.1109/LCOMM.2003.813821
  13. Y. L. Shang, H. J. Kim, C. S. Kim, and T. J. Jung, "New spatial modulation scheme based on quaternary quasi-orthogonal sequence for 8 transmit antennas," J. KICS, vol. 40, no. 4, pp. 637-645, Apr. 2015. https://doi.org/10.7840/kics.2015.40.4.637
  14. R. Mesleh, S. S. Ikki, and H. M. Aggoune, "Quadrature spatial modulation," IEEE Trans. Veh. Technol., vol. 64, no. 6, pp. 2738-2742, Jun. 2015. https://doi.org/10.1109/TVT.2014.2344036
  15. C. Cheng, H. Sari, S. Sezginer, and Yu T. Su, "Enhanced spatial modulation with multiple signal constellations," IEEE Trans. Commun., vol. 63, no. 6, pp. 2237-2248, Jun. 2015. https://doi.org/10.1109/TCOMM.2015.2422306
  16. Y. L. Shang, H. J. Kim, H. J. Kim, and T. J. Jung "New PAPR reduction method for spatial modulation," J. KICS, vol. 39A, no. 1, pp. 12-18, Jan. 2014. https://doi.org/10.7840/kics.2014.39A.1.12
  17. J. G. Proakis, Digital Communications, 4th Ed., McGraw-Hill Higher Education Press, Dec. 2000.