Experimental Study of a Transmission System Based on FBMC/OQAM
Introduction. This paper investigates a transmission system based on FBMC/OQAM multiplexing. This system is characterized by a high spectral efficiency, thereby attracting interest as an alternative transmission method in future wireless mobile communication standards. However, a disadvantage of the...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | Russian |
| Published: |
Saint Petersburg Electrotechnical University "LETI"
2021-12-01
|
| Series: | Известия высших учебных заведений России: Радиоэлектроника |
| Subjects: | |
| Online Access: | https://re.eltech.ru/jour/article/view/575 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1839584166661849088 |
|---|---|
| author | R. R. Abenov E. V. Rogozhnikov Ya. V. Kryukov D. A. Pokamestov P. A. Abenova |
| author_facet | R. R. Abenov E. V. Rogozhnikov Ya. V. Kryukov D. A. Pokamestov P. A. Abenova |
| author_sort | R. R. Abenov |
| collection | DOAJ |
| description | Introduction. This paper investigates a transmission system based on FBMC/OQAM multiplexing. This system is characterized by a high spectral efficiency, thereby attracting interest as an alternative transmission method in future wireless mobile communication standards. However, a disadvantage of the system is the high complexity of signal processing. There are numerous publications that study the FBMC/OQAM system from a theoretical perspective. This paper presents an experimental study of a transmission system based on FBMC/OQAM.Aim. Verification of a transmission system based on FBMC/OQAM multiplexing in a wireless channel.Materials and methods. Computer simulation modeling in Matlab and experimental research using Keysight and Rohde & Schwarz certified measuring instruments.Results. A model of synthesis and signal processing was developed, and a frame structure was proposed. The processing included synchronization, since the study was carried out in a wireless double-dispersive channel. Time synchronization was provided by the method of time-domain correlation. A preamble consisting of two symbols was used for CFO compensation. Channel estimation in FBMC/OQAM was conducted by pilot symbols spread over the time-frequency domain, a method with an auxiliary pilot to compensate for intrinsic interference, as well as Zero Forcing and a linear interpolator. As a result, dependences of the bit error rate on the Eb/N0 in various channels were obtained. An error rate of 10−4 was achieved under the Eb/N0 equal to 13.4 dB, 15.3 dB and 20.9 dB in the first, second and third channel, respectively.Conclusion. A FBMC/OQAM-based transmission system with a linear equalizer can operate without a cyclic prefix in a multipath wireless channel, providing comparable noise immunity to OFDM-CP. Long frames should be used to obtain greater spectral efficiency, due to the presence of a transition zone at the beginning and end of the FBMC/OQAM frame. |
| format | Article |
| id | doaj-art-8da4e3f1397f4b3a9bdce27f4faacad0 |
| institution | Matheson Library |
| issn | 1993-8985 2658-4794 |
| language | Russian |
| publishDate | 2021-12-01 |
| publisher | Saint Petersburg Electrotechnical University "LETI" |
| record_format | Article |
| series | Известия высших учебных заведений России: Радиоэлектроника |
| spelling | doaj-art-8da4e3f1397f4b3a9bdce27f4faacad02025-08-03T19:50:27ZrusSaint Petersburg Electrotechnical University "LETI"Известия высших учебных заведений России: Радиоэлектроника1993-89852658-47942021-12-01246162610.32603/1993-8985-2021-24-6-16-26420Experimental Study of a Transmission System Based on FBMC/OQAMR. R. Abenov0E. V. Rogozhnikov1Ya. V. Kryukov2D. A. Pokamestov3P. A. Abenova4Tomsk State University of Control Systems and RadioelectronicsTomsk State University of Control Systems and RadioelectronicsTomsk State University of Control Systems and RadioelectronicsTomsk State University of Control Systems and RadioelectronicsTomsk State University of Control Systems and RadioelectronicsIntroduction. This paper investigates a transmission system based on FBMC/OQAM multiplexing. This system is characterized by a high spectral efficiency, thereby attracting interest as an alternative transmission method in future wireless mobile communication standards. However, a disadvantage of the system is the high complexity of signal processing. There are numerous publications that study the FBMC/OQAM system from a theoretical perspective. This paper presents an experimental study of a transmission system based on FBMC/OQAM.Aim. Verification of a transmission system based on FBMC/OQAM multiplexing in a wireless channel.Materials and methods. Computer simulation modeling in Matlab and experimental research using Keysight and Rohde & Schwarz certified measuring instruments.Results. A model of synthesis and signal processing was developed, and a frame structure was proposed. The processing included synchronization, since the study was carried out in a wireless double-dispersive channel. Time synchronization was provided by the method of time-domain correlation. A preamble consisting of two symbols was used for CFO compensation. Channel estimation in FBMC/OQAM was conducted by pilot symbols spread over the time-frequency domain, a method with an auxiliary pilot to compensate for intrinsic interference, as well as Zero Forcing and a linear interpolator. As a result, dependences of the bit error rate on the Eb/N0 in various channels were obtained. An error rate of 10−4 was achieved under the Eb/N0 equal to 13.4 dB, 15.3 dB and 20.9 dB in the first, second and third channel, respectively.Conclusion. A FBMC/OQAM-based transmission system with a linear equalizer can operate without a cyclic prefix in a multipath wireless channel, providing comparable noise immunity to OFDM-CP. Long frames should be used to obtain greater spectral efficiency, due to the presence of a transition zone at the beginning and end of the FBMC/OQAM frame.https://re.eltech.ru/jour/article/view/575fbmc-oqamchannel estimationauxiliary pilotbit error rateexperiment |
| spellingShingle | R. R. Abenov E. V. Rogozhnikov Ya. V. Kryukov D. A. Pokamestov P. A. Abenova Experimental Study of a Transmission System Based on FBMC/OQAM Известия высших учебных заведений России: Радиоэлектроника fbmc-oqam channel estimation auxiliary pilot bit error rate experiment |
| title | Experimental Study of a Transmission System Based on FBMC/OQAM |
| title_full | Experimental Study of a Transmission System Based on FBMC/OQAM |
| title_fullStr | Experimental Study of a Transmission System Based on FBMC/OQAM |
| title_full_unstemmed | Experimental Study of a Transmission System Based on FBMC/OQAM |
| title_short | Experimental Study of a Transmission System Based on FBMC/OQAM |
| title_sort | experimental study of a transmission system based on fbmc oqam |
| topic | fbmc-oqam channel estimation auxiliary pilot bit error rate experiment |
| url | https://re.eltech.ru/jour/article/view/575 |
| work_keys_str_mv | AT rrabenov experimentalstudyofatransmissionsystembasedonfbmcoqam AT evrogozhnikov experimentalstudyofatransmissionsystembasedonfbmcoqam AT yavkryukov experimentalstudyofatransmissionsystembasedonfbmcoqam AT dapokamestov experimentalstudyofatransmissionsystembasedonfbmcoqam AT paabenova experimentalstudyofatransmissionsystembasedonfbmcoqam |