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Efficient Weight Vector Representation for Closed-Loop Transmit Diversity
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hwang, Keun Chul | - |
dc.contributor.author | Lee, Kwang Bok | - |
dc.date.accessioned | 2009-08-13T03:34:54Z | - |
dc.date.available | 2009-08-13T03:34:54Z | - |
dc.date.issued | 2004-01 | - |
dc.identifier.citation | IEEE Trans. Commun., vol. 52, pp.9-16, Jan. 2004 | en |
dc.identifier.issn | 0090-6778 | - |
dc.identifier.uri | https://hdl.handle.net/10371/7116 | - |
dc.description.abstract | For a closed-loop transmit (Tx) diversity, the Tx
weights are calculated at a receiver, and fed back to a transmitter. As the number of Tx antennas increases, the potential gain of closed-loop Tx diversity may be significant. However, the amount of feedback information, which is the number of Tx weights that should be fed back, linearly increases, and the performance improvement of a closed-loop Tx diversity system may not be as significant as expected due to delay in the feedback process. Thus, an efficient Tx weight representation, which can reduce the amount of feedback information, is needed. In this letter, a Tx weight vector representation is presented, and its performance is analyzed. Analysis shows that this weight vector representation, referred to as basis selection, significantly reduces the amount of feedback information with little performance degradation. | en |
dc.language.iso | en | en |
dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en |
dc.subject | Antenna arrays | en |
dc.subject | performance | en |
dc.subject | transmit diversity | en |
dc.title | Efficient Weight Vector Representation for Closed-Loop Transmit Diversity | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 황근철 | - |
dc.contributor.AlternativeAuthor | 이광복 | - |
dc.identifier.doi | 10.1109/TCOMM.2003.822146 | - |
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