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 Channel Shuffling Matrix and De-Shuffling Methods for Rate Enhancement of Double Space-Time Line Coded Systems 


Vol. 49,  No. 10, pp. 1358-1367, Oct.  2024
10.7840/kics.2024.49.10.1358


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  Abstract

This study proposes the optimal channel shuffling (CS) matrices and de-shuffling methods to enhance the data rate of CS double space-time line coded (CS-DSTLC) systems. The CS-DSTLC transmitter performs channel shuffling by finding the optimal shuffling matrix that maximizes the received signal-to-noise ratio among total K shuffling matrices. For the correct de-shuffling at the receiver, the shuffling index can be feed-forwarded from the transmitter or estimated by the k-means clustering algorithm. However, feed-forward and k-means clustering-based de-shuffling methods degrade the data rate due to signaling overhead and shuffling errors, respectively. In this work, considering the signaling overhead and shuffling error rate, a CS-DSTLC system data rate model is designed. The optimal number of shuffling matrices K and de-shuffling methods are then suggested. Simulation results show that the data rate can be maximized using the feed-forward-based method in high-order modulation, yet the k-means clustering-based method achieves a higher data rate in low-order modulation. Also, it is verified that the data rate enhancement can be improved by choosing an optimal K for a given frame length.

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[IEEE Style]

J. Kim and J. Joung, "Channel Shuffling Matrix and De-Shuffling Methods for Rate Enhancement of Double Space-Time Line Coded Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 49, no. 10, pp. 1358-1367, 2024. DOI: 10.7840/kics.2024.49.10.1358.

[ACM Style]

Jaehong Kim and Jingon Joung. 2024. Channel Shuffling Matrix and De-Shuffling Methods for Rate Enhancement of Double Space-Time Line Coded Systems. The Journal of Korean Institute of Communications and Information Sciences, 49, 10, (2024), 1358-1367. DOI: 10.7840/kics.2024.49.10.1358.

[KICS Style]

Jaehong Kim and Jingon Joung, "Channel Shuffling Matrix and De-Shuffling Methods for Rate Enhancement of Double Space-Time Line Coded Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 49, no. 10, pp. 1358-1367, 10. 2024. (https://doi.org/10.7840/kics.2024.49.10.1358)
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pISSN : 1226 - 4717
eISSN : 2287 - 3880