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- Publisher Website: 10.1109/ICSPCS.2009.5306438
- Scopus: eid_2-s2.0-70649113097
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Conference Paper: Prefix design for TDS-OFDM supporting frequency domain multiple access
Title | Prefix design for TDS-OFDM supporting frequency domain multiple access |
---|---|
Authors | |
Issue Date | 2009 |
Citation | 3Rd International Conference On Signal Processing And Communication Systems, Icspcs'2009 - Proceedings, 2009 How to Cite? |
Abstract | Different to orthogonal frequency division multiplexing using cyclic prefix (CP-OFDM), time division synchronous OFDM (TDS-OFDM) employs pseudo noise (PN) sequence as the prefix. TDS-OFDM provides better power efficiency than CP-OFDM since the PN prefix can be used for channel estimation while CP-OFDM needs dedicated pilot symbols. However, when TDS-OFDM is considered with frequency domain multiple access (FDMA) where multiple users share the sub-carriers, serious interference is generated between the prefixes of different users since the PN prefix occupies the whole bandwidth. To facilitate the application of TDS-OFDM with FDMA, two prefix design methods are proposed. The prefix should employ time domain repeated PN sequence when discrete grouped sub-carriers are allocated to different mobile stations (MS), while time domain expanded PN sequence should be used when continuous sub-carriers are allocated to different MSs. © 2009 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/155546 |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhou, Y | en_US |
dc.contributor.author | Pan, Z | en_US |
dc.contributor.author | Ye, H | en_US |
dc.date.accessioned | 2012-08-08T08:34:02Z | - |
dc.date.available | 2012-08-08T08:34:02Z | - |
dc.date.issued | 2009 | en_US |
dc.identifier.citation | 3Rd International Conference On Signal Processing And Communication Systems, Icspcs'2009 - Proceedings, 2009 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/155546 | - |
dc.description.abstract | Different to orthogonal frequency division multiplexing using cyclic prefix (CP-OFDM), time division synchronous OFDM (TDS-OFDM) employs pseudo noise (PN) sequence as the prefix. TDS-OFDM provides better power efficiency than CP-OFDM since the PN prefix can be used for channel estimation while CP-OFDM needs dedicated pilot symbols. However, when TDS-OFDM is considered with frequency domain multiple access (FDMA) where multiple users share the sub-carriers, serious interference is generated between the prefixes of different users since the PN prefix occupies the whole bandwidth. To facilitate the application of TDS-OFDM with FDMA, two prefix design methods are proposed. The prefix should employ time domain repeated PN sequence when discrete grouped sub-carriers are allocated to different mobile stations (MS), while time domain expanded PN sequence should be used when continuous sub-carriers are allocated to different MSs. © 2009 IEEE. | en_US |
dc.language | eng | en_US |
dc.relation.ispartof | 3rd International Conference on Signal Processing and Communication Systems, ICSPCS'2009 - Proceedings | en_US |
dc.title | Prefix design for TDS-OFDM supporting frequency domain multiple access | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Zhou, Y:yqzhou@eee.hku.hk | en_US |
dc.identifier.authority | Zhou, Y=rp00214 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1109/ICSPCS.2009.5306438 | en_US |
dc.identifier.scopus | eid_2-s2.0-70649113097 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-70649113097&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.scopusauthorid | Zhou, Y=7405367062 | en_US |
dc.identifier.scopusauthorid | Pan, Z=7402644862 | en_US |
dc.identifier.scopusauthorid | Ye, H=35186575700 | en_US |