Frank, Tobias ; Costa, Elena ; Klein, Anja (2006)
Low complexity multi carrier multiple access with cyclic delay diversity.
International ITG/IEEE Workshop on Smart Antennas (WSA 2006). Ulm, Germany (13.03.2006-14.03.2006)
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
In this paper, the performance of Discrete Fourier Trans- form (DFT) precoded Orthogonal Frequency Division Multiple Access (OFDMA) schemes with interleaved and with blockwise subcarrier allocation is investigated and compared. Transmission with one transmit antenna is compared to transmission with multiple transmit anten- nas using Cyclic Delay Diversity (CDD). It is shown that the investigated DFT precoded OFDMA schemes with CDD provide low computational complexity and good power efficiency due to low envelope fluctuations of the transmit signal at each transmit antenna. Moreover, it is shown that, depending on the data rate, for one transmit antenna interleaved subcarrier allocation results in a sig- nificant performance gain compared to block allocation, whereas for multiple antennas this gain reduces. However, it is shown that even for high data rates DFT precoded OFDMA with interleaved subcarrier allocation is shown to outperform the scheme with block allocation.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2006 |
| Autor(en): | Frank, Tobias ; Costa, Elena ; Klein, Anja |
| Art des Eintrags: | Bibliographie |
| Titel: | Low complexity multi carrier multiple access with cyclic delay diversity |
| Sprache: | Englisch |
| Publikationsjahr: | 2006 |
| Ort: | Ulm, Germany |
| Veranstaltungstitel: | International ITG/IEEE Workshop on Smart Antennas (WSA 2006) |
| Veranstaltungsort: | Ulm, Germany |
| Veranstaltungsdatum: | 13.03.2006-14.03.2006 |
| Kurzbeschreibung (Abstract): | In this paper, the performance of Discrete Fourier Trans- form (DFT) precoded Orthogonal Frequency Division Multiple Access (OFDMA) schemes with interleaved and with blockwise subcarrier allocation is investigated and compared. Transmission with one transmit antenna is compared to transmission with multiple transmit anten- nas using Cyclic Delay Diversity (CDD). It is shown that the investigated DFT precoded OFDMA schemes with CDD provide low computational complexity and good power efficiency due to low envelope fluctuations of the transmit signal at each transmit antenna. Moreover, it is shown that, depending on the data rate, for one transmit antenna interleaved subcarrier allocation results in a sig- nificant performance gain compared to block allocation, whereas for multiple antennas this gain reduces. However, it is shown that even for high data rates DFT precoded OFDMA with interleaved subcarrier allocation is shown to outperform the scheme with block allocation. |
| Fachbereich(e)/-gebiet(e): | 18 Fachbereich Elektrotechnik und Informationstechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Nachrichtentechnik 18 Fachbereich Elektrotechnik und Informationstechnik > Institut für Nachrichtentechnik > Kommunikationstechnik |
| Hinterlegungsdatum: | 20 Nov 2008 08:25 |
| Letzte Änderung: | 17 Mai 2024 09:23 |
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