Closed-Form Differential Hierarchical Demodulator of 2-source Hierarchical-MAC Channel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F21%3A00351399" target="_blank" >RIV/68407700:21230/21:00351399 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/LCOMM.2021.3105814" target="_blank" >https://doi.org/10.1109/LCOMM.2021.3105814</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LCOMM.2021.3105814" target="_blank" >10.1109/LCOMM.2021.3105814</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Closed-Form Differential Hierarchical Demodulator of 2-source Hierarchical-MAC Channel

Popis výsledku v původním jazyce

This paper addresses a problem of differential demodulation in a 2-source Hierarchical MAC (H-MAC) in the context of a Wireless Physical Layer Network Coded system with Hierarchical Decode and Forward strategy. We assume a parametric H-MAC with known attenuations but unknown phases. Component phases have generally strong impact on the resulting superposed constellation which poses high demands on the accuracy of their estimation. In this paper we propose multiple suboptimal closed-form differential demodulation methods which do not require explicit phase estimation and thus substantially simplify the receiver processing. We analyze and compare their performance. Particularly we measure the resulting hierarchical bit error rate for all proposed demodulation methods for different scenarios of a particular symbol alphabet and channel attenuation values. For comparison we include a reference scenario of a fully coherent demodulation.

Název v anglickém jazyce

Closed-Form Differential Hierarchical Demodulator of 2-source Hierarchical-MAC Channel

Popis výsledku anglicky

This paper addresses a problem of differential demodulation in a 2-source Hierarchical MAC (H-MAC) in the context of a Wireless Physical Layer Network Coded system with Hierarchical Decode and Forward strategy. We assume a parametric H-MAC with known attenuations but unknown phases. Component phases have generally strong impact on the resulting superposed constellation which poses high demands on the accuracy of their estimation. In this paper we propose multiple suboptimal closed-form differential demodulation methods which do not require explicit phase estimation and thus substantially simplify the receiver processing. We analyze and compare their performance. Particularly we measure the resulting hierarchical bit error rate for all proposed demodulation methods for different scenarios of a particular symbol alphabet and channel attenuation values. For comparison we include a reference scenario of a fully coherent demodulation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

IEEE Communications Letters

ISSN

1089-7798

e-ISSN

1558-2558

Svazek periodika

25

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

3704-3708

Kód UT WoS článku

000716696200057

EID výsledku v databázi Scopus

2-s2.0-85113247984