Joint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA

MB Noune, AR Nix

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

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Abstract

Single-Carrier Frequency Division Multiple Access (SC-FDMA) has been selected as the uplink transmission scheme in the 3GPP Long Term Evolution standard. SC-FDMA has reduced sensitivity to phase noise and a lower Peak-to-Average Power Ratio (PAPR) compared to Orthogonal Frequency Division Multiple Access. In this paper we propose joint Tomlinson-Harashima Precoding and transmit power allocation for SC-FDMA. We derive the optimum power allocation for SC-FDMA transmission for both Zero-Forcing (ZF) and Minimum Mean-Square Error (MMSE) LE receivers in order to maximize the achievable data rate subject to constant transmit power. Although this improves the system's performance and offers a 1-2 dB improvement over Frequency-Domain Decision Feedback Equalization (FD-DFE), when the proposed transmit power allocation scheme is combined with decision feedback equalization the system incurs a performance degradation due to error propagation. In this paper we propose a joint implementation of the derived power allocation scheme with THP. Here we show that the system's performance is further improved over both FD-LE and FD-DFE when transmit power allocation is applied.
Translated title of the contributionJoint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA
Original languageEnglish
Title of host publicationIEEE Wireless Communications and Networking Conference (WCNC) 2010, Sydney, Australia
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1 - 6
Number of pages6
ISBN (Print)9781424463961
DOIs
Publication statusPublished - Apr 2010
EventWireless Communications and Networking Conference - Sydney, Australia
Duration: 1 Apr 2010 → …

Publication series

Name
ISSN (Print)15253511

Conference

ConferenceWireless Communications and Networking Conference
CountryAustralia
CitySydney
Period1/04/10 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The authors would like to thank the Centre for Communications Research for the provision of research facilities and access to a high performance computing cluster.

Terms of use: Copyright © 2010 IEEE. Reprinted from IEEE
Wireless Communications and Networking Conference (WCNC) 2010.

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Keywords

  • 3GPP LTE
  • SC-FDMA
  • waterfilling
  • equalization
  • precoding
  • THP

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