New Hierarchical Modulation Scheme Using a Constellation Rotation Method 


Vol. 41,  No. 1, pp. 66-76, Jan.  2016


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  Abstract

In this paper, we propose a new hierarchical modulation scheme for DVB-NGH to improve the performance of LP (Low-Parity) signals by applying a conventional constellation-rotation method to the LP signals without virtually a loss of performance of a HP (High-Parity) signals. The improvement of the LP signals is mainly due to the increased divesity gain caused by the constellation-rotation method which barely affect the performance of the HP signals. For the new scheme, we also propose a hardware-efficient ML (Maximum-Likelihood) detection algorithm that first decodes the HP signals by using a conventional HP receiver, and then simply decodes the precoded LP signals based on the pre-detected HP signals.

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  Cite this article

[IEEE Style]

H. Kim, Y. Shang, J. Park, T. Jung, "New Hierarchical Modulation Scheme Using a Constellation Rotation Method," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 1, pp. 66-76, 2016. DOI: .

[ACM Style]

Hojun Kim, Yulong Shang, Jaehyung Park, and Taejin Jung. 2016. New Hierarchical Modulation Scheme Using a Constellation Rotation Method. The Journal of Korean Institute of Communications and Information Sciences, 41, 1, (2016), 66-76. DOI: .

[KICS Style]

Hojun Kim, Yulong Shang, Jaehyung Park, Taejin Jung, "New Hierarchical Modulation Scheme Using a Constellation Rotation Method," The Journal of Korean Institute of Communications and Information Sciences, vol. 41, no. 1, pp. 66-76, 1. 2016.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880