WO2020142044A1 - Procédé de transmission de données utilisant un multiplexage par répartition orthogonale de la fréquence avec modulation du nombre de sous-porteuses, ajusté à la localisation - Google Patents
Procédé de transmission de données utilisant un multiplexage par répartition orthogonale de la fréquence avec modulation du nombre de sous-porteuses, ajusté à la localisation Download PDFInfo
- Publication number
- WO2020142044A1 WO2020142044A1 PCT/TR2019/051237 TR2019051237W WO2020142044A1 WO 2020142044 A1 WO2020142044 A1 WO 2020142044A1 TR 2019051237 W TR2019051237 W TR 2019051237W WO 2020142044 A1 WO2020142044 A1 WO 2020142044A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sub
- block
- carriers
- division multiplexing
- orthogonal frequency
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2614—Peak power aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
- H04L5/0046—Determination of how many bits are transmitted on different sub-channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
Definitions
- the invention is related to a method for transmitting data using, location adjusted, subcarrier number modulation orthogonal frequency division multiplexing in order to reduce peak power/average power ratios and to increase efficiency particularly in wireless connections.
- One of the other applications in the prior art is to use an orthogonal frequency division multiplexing.
- the data that is to be transmitted is primarily divided into sub-blocks.
- the data bits are mapped with active carriers and/or symbols.
- IFFT inverse fast fourier transform
- cyclic prefix procedures are carried out.
- the analog signal that is to be transmitted by carrying out digital to analog conversion is established.
- these applications are not sufficiently fast and they may not be able to provide the necessary reliability.
- the aim of this is to provide a method for transmitting data using, location adjusted, subcarrier number modulated orthogonal frequency division multiplexing in order to reduce peak power/average power ratios and to increase efficiency particularly in wireless connections.
- a signal transmitted from a receiver can also be received from devices that are not authorized recipients. This situation reduces the reliability of wireless connection applications. Due to this reason, by means of the present invention, a method has been developed for transmitting data using, location adjusted, subcarrier number modulation (SNM) orthogonal frequency division multiplexing (OFDM) in order to reduce peak power/average power ratios and to increase efficiency particularly in wireless connections.
- SNM subcarrier number modulation
- OFDM orthogonal frequency division multiplexing
- the step of adjusting the locations of the sub-carriers that are to be activated comprises the steps of, determining the active sub-carriers that are located in the midsection inside the sub-block; determining the peak power/average power ratio (PAPR) following the inverse fast fourier transform process carried out on the established orthogonal frequency division multiplexing block, comparing the different peak power/average power ratios that have been obtained by shifting the locations of the active subcarriers present inside the sub-block; determining the lowest peak power/average power ratios that provide the locations of the active sub-carriers as final locations.
- PAPR peak power/average power ratio
- the step of adjusting the locations of the sub-carriers that are to be activated comprises the step of determining the locations of the active sub-carriers according to the value of p2 number of bit sections that remain outside of the pi number of bits belonging to p number of bits in each block.
- the pi number of bits is used to determine the active carrier numbers inside a sub-block
- the p2 number of bits is used to determine the location of the active carrier.
- the number of active carriers and their locations are determined according to the data to be carried, thereby the related application has a configuration that is driven by data.
- said N value is obtained by dividing the size of the fast fourier transform (FFT) size into G numbers.
- FFT fast fourier transform
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
La présente invention concerne un procédé de transmission de données utilisant le multiplexage par répartition orthogonale de la fréquence avec modulation du nombre de sous-porteuses, ajusté à la localisation, dans des connexions sans fil. Ledit procédé comprend les étapes consistant à séparer mi nombre de bits de données qui doivent être transmis de l'émetteur au récepteur, en un groupe de nombres G comprenant p nombres de bits afin de former un sous-bloc ayant chacun une longueur N; à activer K nombres des sous-porteuses disponibles de N nombres pour un nombre de bits de p sélectionné en fonction du nombre N dans chaque sous-bloc, la valeur K mentionnée ici varie en fonction du nombre de p1 valeurs de bits; ajuster les emplacements des sous-porteuses qui doivent être activées; déterminer les symboles qui doivent être transmis avec les sous-porteuses actives en faisant correspondre les p2 nombres de la section de bits au groupe de signaux M-aire, qui reste en dehors du nombre p1 de bits appartenant à un nombre p de bits dans chaque sous-bloc; former un bloc de multiplexage par répartition en fréquence orthogonale en reliant chaque sous-bloc entre eux où les symboles qui devaient être transmis par des sous-porteuses actives ont été déterminés; former le signal qui doit être transmis au récepteur par application d'une transformée de Fourier rapide inverse (IFFT) au bloc de multiplexage par répartition en fréquence orthogonale établi, par mise en œuvre d'un préfixe cyclique et par conversion du signal numérique en un signal analogique; et transmettre le signal établi à un récepteur.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR201821366 | 2018-12-31 | ||
| TR2018/21366 | 2018-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020142044A1 true WO2020142044A1 (fr) | 2020-07-09 |
Family
ID=71407332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2019/051237 WO2020142044A1 (fr) | 2018-12-31 | 2019-12-27 | Procédé de transmission de données utilisant un multiplexage par répartition orthogonale de la fréquence avec modulation du nombre de sous-porteuses, ajusté à la localisation |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2020142044A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022125021A1 (fr) * | 2021-08-10 | 2022-06-16 | Antalya Bilim Universitesi Rektorlugu | Multiplexage par répartition orthogonale de la fréquence multi-utilisateur avec modulation du nombre de sous-porteuses |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201021480A (en) * | 2008-11-28 | 2010-06-01 | Univ Nat Sun Yat Sen | Method and apparatus for reducing peak-to-average power ratio |
| CN106027444A (zh) * | 2016-05-13 | 2016-10-12 | 电子科技大学 | 一种子载波调制ofdm系统的峰均比抑制方法 |
| CN107707500A (zh) * | 2017-08-30 | 2018-02-16 | 华南理工大学 | 一种基于多种模式的ofdm序号调制方法 |
-
2019
- 2019-12-27 WO PCT/TR2019/051237 patent/WO2020142044A1/fr active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201021480A (en) * | 2008-11-28 | 2010-06-01 | Univ Nat Sun Yat Sen | Method and apparatus for reducing peak-to-average power ratio |
| CN106027444A (zh) * | 2016-05-13 | 2016-10-12 | 电子科技大学 | 一种子载波调制ofdm系统的峰均比抑制方法 |
| CN107707500A (zh) * | 2017-08-30 | 2018-02-16 | 华南理工大学 | 一种基于多种模式的ofdm序号调制方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022125021A1 (fr) * | 2021-08-10 | 2022-06-16 | Antalya Bilim Universitesi Rektorlugu | Multiplexage par répartition orthogonale de la fréquence multi-utilisateur avec modulation du nombre de sous-porteuses |
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