Generalized Quaternary Quasi-Orthogonal Sequences Spatial Modulation 


Vol. 41,  No. 4, pp. 404-414, Apr.  2016


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  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 Nt spatial bits with Nt 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.

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  Cite this article

[IEEE Style]

Y. Shang, H. Kim, T. Jung, "Generalized Quaternary Quasi-Orthogonal Sequences Spatial Modulation," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 4, pp. 404-414, 2016. DOI: .

[ACM Style]

Yulong Shang, Hojun Kim, and Taejin Jung. 2016. Generalized Quaternary Quasi-Orthogonal Sequences Spatial Modulation. The Journal of Korean Institute of Communications and Information Sciences, 41, 4, (2016), 404-414. DOI: .

[KICS Style]

Yulong Shang, Hojun Kim, Taejin Jung, "Generalized Quaternary Quasi-Orthogonal Sequences Spatial Modulation," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 4, pp. 404-414, 4. 2016.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880