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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20202 - Communication engineering and systems

Projekt

<a href="/cs/project/GA18-27023S" target="_blank" >GA18-27023S: Komunikace v samo-optimalizujících se mobilních sítích s drony</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

GLOBECOM 2020 - 2020 IEEE Global Communications Conference

ISBN

978-1-7281-8298-8

ISSN

1930-529X

e-ISSN

2576-6813

Počet stran výsledku

7

Strana od-do

—

Název nakladatele

IEEE

Místo vydání

New York

Místo konání akce

Taipei, Tchaj-wan

Datum konání akce

7. 12. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—