Design of New Differential Space-Time Modulation Using Real Precoder 


Vol. 37,  No. 1, pp. 1-7, Jan.  2012


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  Abstract

The conventional Zhu’s differential space-time modulation(DSTM) based on quasi-orthogonal design adopted a complex precoder in order to allow an independent joint detection of two complex symbols without any channel informations at a receiver. In this paper, by simply replacing the complex precoder used in Zhu’s DSTM with a real precoder, a new DSTM is presented for four transmit antennas. The real precoder enables the receiver to decode two real symbols pair separately, and thus the new DSTM has greatly reduced decoding complexity compared to the Zhu’s DSTM. By computer simulation results, the proposed scheme is shown to exhibit almost identical or improved error performance compared to the existing DSTMs.

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  Cite this article

[IEEE Style]

H. Kim, J. Kim, C. Kim, T. Jung, "Design of New Differential Space-Time Modulation Using Real Precoder," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 1, pp. 1-7, 2012. DOI: .

[ACM Style]

Hongjung Kim, Junho Kim, Cheolsung Kim, and Taejin Jung. 2012. Design of New Differential Space-Time Modulation Using Real Precoder. The Journal of Korean Institute of Communications and Information Sciences, 37, 1, (2012), 1-7. DOI: .

[KICS Style]

Hongjung Kim, Junho Kim, Cheolsung Kim, Taejin Jung, "Design of New Differential Space-Time Modulation Using Real Precoder," The Journal of Korean Institute of Communications and Information Sciences, vol. 37, no. 1, pp. 1-7, 1. 2012.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880