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2019 Fiscal Year Annual Research Report

Lattice Codes for Gaussian Wireless Networks Beyond 5G

Research Project

Project/Area Number 19H02137
Research InstitutionJapan Advanced Institute of Science and Technology

Principal Investigator

KURKOSKI Brian  北陸先端科学技術大学院大学, 先端科学技術研究科, 准教授 (80444123)

Co-Investigator(Kenkyū-buntansha) 落合 秀樹  横浜国立大学, 大学院工学研究院, 教授 (20334576)
Project Period (FY) 2019-04-01 – 2023-03-31
Keywordslattice / network codes / wireless communications / information theory / coding theory
Outline of Annual Research Achievements

For future wireless networks, several new methods using lattices and related techniques to increase the bandwidth efficiency, reduce computational complexity and reduce energy consumption were obtained. For integer-forcing MIMO systems where both users have multiple antennas orthogonal precoding outperforms unitary precoding in terms of achievable rate, outage probability, and error rate. The proposed scheme has lower complexity. Published in IEEE Trans on Wireless Communications and were presented at the IEEE Intl. Symp. on Information Theory in Paris, France. For OFDM systems with polar codes, a construction technique using shaping bit patterns significant reduces transmit power, PAPR gain 4.5 dB. Published IEEE Comm. Letters.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

We published two journal papers in FY2019, so we judge our progress to be reasonable.

Strategy for Future Research Activity

For 2020, the plan is separated into four work packages WP1-WP4:
(WP1) Lattice Codes for IoT: Develop a new design method for short-block length lattices which minimizes the decoder word error rate using the error rates of the constituent codes for polar code lattices.
(WP2) Network Lattice Codes: Show that low-density lattice codes based on Eisenstein integers can be decoded with lower complexity than those based on Gaussian integers, without performance loss.
(WP3) Simple Gaussian Networks: Develop coding schemes for the compute-forward multiple-access strategy.
(WP4) Multi-Terminal Gaussian Networks: We will investigate an "expanded constellation" approach for compute-forward, in which t he decoder assumes a larger constellation than was used by the transmitter.

  • Research Products

    (6 results)

All 2020 2019

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Journal Article] Steepest Gradient-Based Orthogonal Precoder for Integer-Forcing MIMO2020

    • Author(s)
      Hasan Mohammad Nur、Kurkoski Brian M.、Sakzad Amin、Viterbo Emanuele
    • Journal Title

      IEEE Transactions on Wireless Communications

      Volume: 19 Pages: 942~955

    • DOI

      10.1109/TWC.2019.2950010

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A Novel PAPR Reduction Scheme for Polar-Coded OFDM Systems2019

    • Author(s)
      Matsumine Toshiki、Ochiai Hideki
    • Journal Title

      IEEE Communications Letters

      Volume: 23 Pages: 2372~2375

    • DOI

      10.1109/LCOMM.2019.2943334

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] On Design of Multilevel Coded Modulation Based on CRC-Concatenated Polar Codes2020

    • Author(s)
      Y. Yajima and H. Ochiai
    • Organizer
      2020 IEEE 17th Annual Consumer Communications & Networking Conference (CCNC)
    • Int'l Joint Research
  • [Presentation] Orthogonal Precoder for Integer-Forcing MIMO2019

    • Author(s)
      Hasan Mohammad Nur、Kurkoski Brian M.、Sakzad Amin、Viterbo Emanuele
    • Organizer
      2019 IEEE International Symposium on Information Theory
    • Int'l Joint Research
  • [Presentation] From classification to quantization: Machine learning for communications2019

    • Author(s)
      Brian M. Kurkoski
    • Organizer
      Symposium on Future of Telecommunication Technologies (Kuala Lumpur, Malaysia)
    • Invited
  • [Presentation] Introduction to lattice coding theory2019

    • Author(s)
      Brian M. Kurkoski
    • Organizer
      Studium Generale at Telkom University (Bandung, Indonesia)
    • Invited

URL: 

Published: 2021-01-27  

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