File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Uplink SDMA with limited feedback: Throughput scaling

TitleUplink SDMA with limited feedback: Throughput scaling
Authors
Issue Date2008
Citation
Eurasip Journal on Advances in Signal Processing, 2008, v. 2008 How to Cite?
AbstractCombined space division multiple access (SDMA) and scheduling exploit both spatial multiplexing and multiuserdiversity, increasing throughput significantly. Both SDMA andscheduling require feedback of multiuser channel sate information(CSI). This paper focuses on uplink SDMA with limited feedback,which refers to efficient techniques for CSI quantization andfeedback. To quantify the throughput of uplink SDMA and derivedesign guidelines, the throughput scaling with system parameters isanalyzed. The specific parameters considered include the numbers ofusers, antennas, and feedback bits. Furthermore, different SNRregimes and beamforming methods are considered. The derivedthroughput scaling laws are observed to change for different SNRregimes. For instance, the throughput scales logarithmically withthe number of users in the high SNR regime but doublelogarithmically in the low SNR regime. The analysis of throughputscaling suggests guidelines for scheduling in uplink SDMA. Forexample, to maximize throughput scaling, scheduling should use thecriterion of minimum quantization errors for the high SNR regime and maximum channel power for the low SNR regime.
Persistent Identifierhttp://hdl.handle.net/10722/194210
ISSN
2010 Impact Factor: 1.053
2015 SCImago Journal Rankings: 0.297
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHuang, K-
dc.contributor.authorHeath Jr, RW-
dc.contributor.authorAndrews, JG-
dc.date.accessioned2014-01-30T03:32:18Z-
dc.date.available2014-01-30T03:32:18Z-
dc.date.issued2008-
dc.identifier.citationEurasip Journal on Advances in Signal Processing, 2008, v. 2008-
dc.identifier.issn1687-6172-
dc.identifier.urihttp://hdl.handle.net/10722/194210-
dc.description.abstractCombined space division multiple access (SDMA) and scheduling exploit both spatial multiplexing and multiuserdiversity, increasing throughput significantly. Both SDMA andscheduling require feedback of multiuser channel sate information(CSI). This paper focuses on uplink SDMA with limited feedback,which refers to efficient techniques for CSI quantization andfeedback. To quantify the throughput of uplink SDMA and derivedesign guidelines, the throughput scaling with system parameters isanalyzed. The specific parameters considered include the numbers ofusers, antennas, and feedback bits. Furthermore, different SNRregimes and beamforming methods are considered. The derivedthroughput scaling laws are observed to change for different SNRregimes. For instance, the throughput scales logarithmically withthe number of users in the high SNR regime but doublelogarithmically in the low SNR regime. The analysis of throughputscaling suggests guidelines for scheduling in uplink SDMA. Forexample, to maximize throughput scaling, scheduling should use thecriterion of minimum quantization errors for the high SNR regime and maximum channel power for the low SNR regime.-
dc.languageeng-
dc.relation.ispartofEurasip Journal on Advances in Signal Processing-
dc.titleUplink SDMA with limited feedback: Throughput scaling-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1155/2008/479357-
dc.identifier.scopuseid_2-s2.0-41249092963-
dc.identifier.volume2008-
dc.identifier.isiWOS:000254322600001-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats