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SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding

Erica Debels (UGent) and Marc Moeneclaey (UGent)
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Abstract
Compared to linear precoding, Tomlinson-Harashima precoding (THP) requires less transmit power to eliminate the spatial interference in a multi-user downlink scenario involving a multi-antenna transmitter and geographically separated receivers. However, THP gives rise to certain performance losses, referred to as modulo loss and power loss. Based on the observation that part of the users can omit the modulo operation at the receiver during an entire frame, we present an alternative detector, which reduces the modulo loss compared to the conventional detector. In addition, this contribution compares several existing and novel algorithms for selecting the user ordering and the rotation of the constellations at the transmitter, to increase the SNR at the detector and decrease the modulo loss for the alternative detector. Compared to the better of linear precoding and THP with conventional detector, the optimized alternative detector achieves significant gains (up to about 4 dB) for terrestrial wireless communication, whereas smaller gains (up to about 1 dB) are obtained for multi-beam satellite communication.
Keywords
: Multi-user multiple-input single-output (MU-MISO), Tomlinson-Harashima precoding (THP), Interference cancellation, Flat fading terrestrial communication, Multi-beam satellite communication, SNR maximization, Modulo loss (MoL) reduction

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Citation

Please use this url to cite or link to this publication:

MLA
Debels, Erica, and Marc Moeneclaey. “SNR Maximization and Modulo Loss Reduction for Tomlinson-Harashima Precoding.” EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING 1 (2018): 1–19. Print.
APA
Debels, E., & Moeneclaey, M. (2018). SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding. EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, (1), 1–19.
Chicago author-date
Debels, Erica, and Marc Moeneclaey. 2018. “SNR Maximization and Modulo Loss Reduction for Tomlinson-Harashima Precoding.” Eurasip Journal on Wireless Communications and Networking (1): 1–19.
Chicago author-date (all authors)
Debels, Erica, and Marc Moeneclaey. 2018. “SNR Maximization and Modulo Loss Reduction for Tomlinson-Harashima Precoding.” Eurasip Journal on Wireless Communications and Networking (1): 1–19.
Vancouver
1.
Debels E, Moeneclaey M. SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding. EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING. Springer ; 2018;(1):1–19.
IEEE
[1]
E. Debels and M. Moeneclaey, “SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding,” EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING, no. 1, pp. 1–19, 2018.
@article{8583765,
  abstract     = {Compared to linear precoding, Tomlinson-Harashima precoding (THP) requires less transmit power to eliminate the
spatial interference in a multi-user downlink scenario involving a multi-antenna transmitter and geographically
separated receivers. However, THP gives rise to certain performance losses, referred to as modulo loss and power loss.
Based on the observation that part of the users can omit the modulo operation at the receiver during an entire frame,
we present an alternative detector, which reduces the modulo loss compared to the conventional detector. In
addition, this contribution compares several existing and novel algorithms for selecting the user ordering and the
rotation of the constellations at the transmitter, to increase the SNR at the detector and decrease the modulo loss for
the alternative detector. Compared to the better of linear precoding and THP with conventional detector, the
optimized alternative detector achieves significant gains (up to about 4 dB) for terrestrial wireless communication,
whereas smaller gains (up to about 1 dB) are obtained for multi-beam satellite communication.},
  articleno    = {257},
  author       = {Debels, Erica and Moeneclaey, Marc},
  issn         = {1687-1472 },
  journal      = {EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING},
  keywords     = {: Multi-user multiple-input single-output (MU-MISO),Tomlinson-Harashima precoding (THP),Interference cancellation,Flat fading terrestrial communication,Multi-beam satellite communication,SNR maximization,Modulo loss (MoL) reduction},
  language     = {eng},
  number       = {1},
  pages        = {257:1--257:19},
  publisher    = {Springer },
  title        = {SNR maximization and modulo loss reduction for Tomlinson-Harashima precoding},
  url          = {http://dx.doi.org/10.1186/s13638-018-1262-7},
  year         = {2018},
}

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