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Low-Complexity Iterative Soft-output Demodulation for Hierarchical Quadrature Amplitude Modulation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00347686" target="_blank" >RIV/68407700:21230/20:00347686 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1109/GLOBECOM42002.2020.9322213" target="_blank" >https://doi.org/10.1109/GLOBECOM42002.2020.9322213</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1109/GLOBECOM42002.2020.9322213" target="_blank" >10.1109/GLOBECOM42002.2020.9322213</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Low-Complexity Iterative Soft-output Demodulation for Hierarchical Quadrature Amplitude Modulation

  • Original language description

    This paper proposes a novel design of low-complexity soft-output demodulation and soft-output demapping for multi-level iterative decoding of any double-binary code and high-order hierarchical quadrature amplitude modulation (HQAM) schemes. The proposed solution exploits two techniques of self-interference cancellation. The fist one, a blind successive self-interference cancellation, provides a coarse synchronization in an acquisition mode of a receiver. The second one, a hard decision directed parallel self-interference cancellation, is exploited in a tracking mode. The proposed solution is of a very low complexity corresponding only to QPSK demodulation even for modulations of higher orders. Such low complexity allows an efficient implementation of HQAM in mobile and wireless networks with no signaling or coordination between transmitter and receiver required for a selection of modulation. Thus, the proposed approach is suitable for many up-to-date solutions including communication via drones, transparent relaying, or device-to-device communication. The designed solution is verified via a reference implementation of 256-HQAM scheme in FPGA. The results confirm a suitability of the proposed scheme for HQAM demodulation and show that a low bit error rate is achieved by the proposed solution in a wide range of signal to noise ratio.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20202 - Communication engineering and systems

Result continuities

  • Project

    <a href="/en/project/GA18-27023S" target="_blank" >GA18-27023S: Communication in Self-optimizing Mobile Networks with Drones</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2020

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    GLOBECOM 2020 - 2020 IEEE Global Communications Conference

  • ISBN

    978-1-7281-8298-8

  • ISSN

    1930-529X

  • e-ISSN

    2576-6813

  • Number of pages

    7

  • Pages from-to

  • Publisher name

    IEEE

  • Place of publication

    New York

  • Event location

    Taipei, Tchaj-wan

  • Event date

    Dec 7, 2020

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article