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2020 年度 実績報告書

Lattice Codes for Gaussian Wireless Networks Beyond 5G

研究課題

研究課題/領域番号 19H02137
研究機関北陸先端科学技術大学院大学

研究代表者

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

研究分担者 落合 秀樹  横浜国立大学, 大学院工学研究院, 教授 (20334576)
研究期間 (年度) 2019-04-01 – 2023-03-31
キーワードlattice / network codes / wireless communications / Information theory / coding theory
研究実績の概要

Designs of two new lattices were proposed, with the aim of increasing the bandwidth efficiency & reducing energy consumption for future wireless networks. The first lattice is based on polar codes, where we overcame the challenge of selecting the component code rates using extensive numerical simulations to find a polar code lattice with lower decoding complexity than, and decoder error rates approaching, competing BCH code lattices. The second lattice design is based on quasi-cyclic low-density parity-check codes, where we used an innovative binary integer programming approach to design a parity-check matrix to satisfy the design constraints of the LDPC code, as well as those imposed by the Construction D' lattice restrictions.

現在までの達成度 (区分)
現在までの達成度 (区分)

2: おおむね順調に進展している

理由

We conducted research leading to two major conference papers which have already been accepted for publication in June 2021.

今後の研究の推進方策

For 2021, the plan is separated into four work packages WP1-WP4:
(WP1) Lattice codes using Construction D applied to binary polar codes are designed. To minimize the decoding error rate, density evolution under successive-cancelation decoding is used to find the component codes with the maximum possible code rate.
(WP2) Network Lattice Codes: We design LDPC code lattices using Construction D’ which further can be shaped using convolutional code lattices.
(WP3) We will develop finite-length lattice codes and strategies for the Gaussian CEO problem, in order to increase the throughput of distributed source coding systems.
(WP4) We design new lattice codes for compute-forward wireless networking by concentrating on finite-dimensional lattices.

  • 研究成果

    (3件)

すべて 2021

すべて 雑誌論文 (3件) (うち国際共著 1件、 オープンアクセス 2件、 査読あり 1件)

  • [雑誌論文] Design of Polar Code Lattices of Small Dimension2021

    • 著者名/発表者名
      Obed Rhesa Ludwiniananda, Ning Liu, Khoirul Anwar, Brian M. Kurkoski
    • 雑誌名

      arXiv

      巻: 2102.03998 ページ: 1-6

    • オープンアクセス
  • [雑誌論文] Encoding and Decoding Construction D' Lattices for Power-Constrained Communications2021

    • 著者名/発表者名
      Fan Zhou, Arini Fitri, Khoirul Anwar, Brian M. Kurkoski
    • 雑誌名

      arXiv

      巻: 2102.04741 ページ: 1-6

    • オープンアクセス
  • [雑誌論文] Capacity-Approaching Polar Codes With Long Codewords and Successive Cancellation Decoding Based on Improved Gaussian Approximation2021

    • 著者名/発表者名
      Ochiai Hideki, Mitran Patrick, H. Vincent Poor
    • 雑誌名

      IEEE Transactions on Communications

      巻: 69 ページ: 31~43

    • DOI

      10.1109/TCOMM.2020.3030057

    • 査読あり / 国際共著

URL: 

公開日: 2021-12-27  

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