Differential Space-Time Line Codes and Its Performance Comparison According to Constellations 


Vol. 49,  No. 5, pp. 702-710, May  2024
10.7840/kics.2024.49.5.702


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  Abstract

This study proposes a differential space-time line code (DSTLC) for wireless communications in a time-varying channel environment. The existing space-time line code (STLC) technique proposed in a time-invariant channel environment requires full channel state information (CSI) at the transmitter, which is unsuitable for mobile communications operating in a time-varying channel environment. On the other hand, the proposed DSTLC system does not require CSI for the encoding and decoding. However, since the DSTLC techniques suffer ambiguity on the amplitude of the modulated signals, a non-constant modulus constellation (NCMC) like a quadrature amplitude modulation (QAM) probably having symbols with the identical phases cannot be used, and thus, a constant modulus constellation (CMC), such as phase-shift keying, must be used for the designed DSTLC systems. To resolve this issue, various amplitude and phase-shift keying methods with NCMC are designed, and using them, the feasibility of DSTLC is verified for mobile communications.

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[IEEE Style]

J. Joung, "Differential Space-Time Line Codes and Its Performance Comparison According to Constellations," The Journal of Korean Institute of Communications and Information Sciences, vol. 49, no. 5, pp. 702-710, 2024. DOI: 10.7840/kics.2024.49.5.702.

[ACM Style]

Jingon Joung. 2024. Differential Space-Time Line Codes and Its Performance Comparison According to Constellations. The Journal of Korean Institute of Communications and Information Sciences, 49, 5, (2024), 702-710. DOI: 10.7840/kics.2024.49.5.702.

[KICS Style]

Jingon Joung, "Differential Space-Time Line Codes and Its Performance Comparison According to Constellations," The Journal of Korean Institute of Communications and Information Sciences, vol. 49, no. 5, pp. 702-710, 5. 2024. (https://doi.org/10.7840/kics.2024.49.5.702)
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