Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 10th International Symposium on Wireless Communication Systems 2013, ISWCS 2013 |
| Herausgeber (Verlag) | IEEE Computer Society |
| Seiten | 753-757 |
| Seitenumfang | 5 |
| ISBN (Print) | 9783800735297 |
| Publikationsstatus | Veröffentlicht - 2013 |
| Veranstaltung | 10th IEEE International Symposium on Wireless Communication Systems 2013, ISWCS 2013 - Ilmenau, Deutschland Dauer: 27 Aug. 2013 → 30 Aug. 2013 |
Publikationsreihe
| Name | Proceedings of the International Symposium on Wireless Communication Systems |
|---|---|
| ISSN (Print) | 2154-0217 |
| ISSN (elektronisch) | 2154-0225 |
Abstract
Spectrum pooling offers increased flexibility for spectrum management and raises the spectrum usage rate in overpopulated parts of the spectrum. As a result, the noncontiguous OFDM (NC-OFDM) scheme has been proposed as an option to solve this issue. In this work, the performance of NC-OFDM will be measured and evaluated using softwaredefined radio hardware in coexistence scenarios in the TV band. Thereby, two NC-OFDM system concepts, utilizing CP-OFDM and OQAM-OFDM, are presented and the requirements for the systems in the spectrum pooling approach are discussed. The performance is compared in terms of achievable average throughput and frame error rate over SIR for both systems in different resource allocation scenarios. Here the special focus is on the frame synchronization in NC-OFDM systems. A modified version of a proposed time-domain synchronization scheme is investigated to achieve synchronization even at low SIR. The results show that the OQAM-OFDM scheme can maintain its good spectral properties and achieves robustness against narrowband interference in a setup with common software-defined radio hardware as well as delivers a higher overall throughput under low SIR conditions. The modified time-domain synchronization thereby enables the transmission even at SIR levels of -30 dB and below compared to a complete loss of connection at -10 dB using common time-domain synchronization methods.
ASJC Scopus Sachgebiete
- Informatik (insg.)
- Computernetzwerke und -kommunikation
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
- Sozialwissenschaften (insg.)
- Kommunikation
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- BibTex
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10th International Symposium on Wireless Communication Systems 2013, ISWCS 2013. IEEE Computer Society, 2013. S. 753-757 (Proceedings of the International Symposium on Wireless Communication Systems).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Practical evaluation of NC-OFDM system designs in dynamic spectrum access with narrow-band interference
AU - Thein, Christoph
AU - Fuhrwerk, Martin
AU - Peissig, Jürgen
PY - 2013
Y1 - 2013
N2 - Spectrum pooling offers increased flexibility for spectrum management and raises the spectrum usage rate in overpopulated parts of the spectrum. As a result, the noncontiguous OFDM (NC-OFDM) scheme has been proposed as an option to solve this issue. In this work, the performance of NC-OFDM will be measured and evaluated using softwaredefined radio hardware in coexistence scenarios in the TV band. Thereby, two NC-OFDM system concepts, utilizing CP-OFDM and OQAM-OFDM, are presented and the requirements for the systems in the spectrum pooling approach are discussed. The performance is compared in terms of achievable average throughput and frame error rate over SIR for both systems in different resource allocation scenarios. Here the special focus is on the frame synchronization in NC-OFDM systems. A modified version of a proposed time-domain synchronization scheme is investigated to achieve synchronization even at low SIR. The results show that the OQAM-OFDM scheme can maintain its good spectral properties and achieves robustness against narrowband interference in a setup with common software-defined radio hardware as well as delivers a higher overall throughput under low SIR conditions. The modified time-domain synchronization thereby enables the transmission even at SIR levels of -30 dB and below compared to a complete loss of connection at -10 dB using common time-domain synchronization methods.
AB - Spectrum pooling offers increased flexibility for spectrum management and raises the spectrum usage rate in overpopulated parts of the spectrum. As a result, the noncontiguous OFDM (NC-OFDM) scheme has been proposed as an option to solve this issue. In this work, the performance of NC-OFDM will be measured and evaluated using softwaredefined radio hardware in coexistence scenarios in the TV band. Thereby, two NC-OFDM system concepts, utilizing CP-OFDM and OQAM-OFDM, are presented and the requirements for the systems in the spectrum pooling approach are discussed. The performance is compared in terms of achievable average throughput and frame error rate over SIR for both systems in different resource allocation scenarios. Here the special focus is on the frame synchronization in NC-OFDM systems. A modified version of a proposed time-domain synchronization scheme is investigated to achieve synchronization even at low SIR. The results show that the OQAM-OFDM scheme can maintain its good spectral properties and achieves robustness against narrowband interference in a setup with common software-defined radio hardware as well as delivers a higher overall throughput under low SIR conditions. The modified time-domain synchronization thereby enables the transmission even at SIR levels of -30 dB and below compared to a complete loss of connection at -10 dB using common time-domain synchronization methods.
UR - http://www.scopus.com/inward/record.url?scp=84903219043&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84903219043
SN - 9783800735297
T3 - Proceedings of the International Symposium on Wireless Communication Systems
SP - 753
EP - 757
BT - 10th International Symposium on Wireless Communication Systems 2013, ISWCS 2013
PB - IEEE Computer Society
T2 - 10th IEEE International Symposium on Wireless Communication Systems 2013, ISWCS 2013
Y2 - 27 August 2013 through 30 August 2013
ER -