File Download
There are no files associated with this item.
Links for fulltext
(May Require Subscription)
- Publisher Website: 10.1109/TSP.2009.2014272
- Scopus: eid_2-s2.0-65649116192
- WOS: WOS:000265437900023
- Find via
Supplementary
- Citations:
- Appears in Collections:
Article: Limited feedback beamforming over temporally-correlated channels
Title | Limited feedback beamforming over temporally-correlated channels |
---|---|
Authors | |
Keywords | Array signal processing Doppler effect Feedback communication Markov processes Time-varying channels Vector quantization |
Issue Date | 2009 |
Citation | IEEE Transactions on Signal Processing, 2009, v. 57 n. 5, p. 1959-1975 How to Cite? |
Abstract | Feedback of quantized channel state information (CSI), called limited feedback, enables transmit beamforming in multiple-input-multiple-output (MIMO) wireless systems with a small amount of overhead. Due to its efficiency, beamforming with limited feedback has been adopted in several wireless communication standards. Prior work on limited feedback commonly adopts the block fading channel model where temporal correlation in wireless channels is neglected. In this paper, we consider temporally correlated channels and design single-user transmit beamforming with limited feedback. Analytical results concerning CSI feedback are derived by modeling quantized CSI as a first-order finite-state Markov chain. These results include the information rate of the CSI quantizer output, the bit rate a CSI feedback channel is required to support, and the effect of feedback delay on throughput. In particular, based on the theory of Markov chain convergence rate, feedback delay is proved to reduce the throughput gain due to CSI feedback at least exponentially. Furthermore, an algorithm is proposed for CSI feedback compression in time. Combining the results in this work leads to a new method for designing limited feedback beamforming as demonstrated by a design example. © 2009 IEEE. |
Persistent Identifier | http://hdl.handle.net/10722/194235 |
ISSN | 2023 Impact Factor: 4.6 2023 SCImago Journal Rankings: 2.520 |
ISI Accession Number ID |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Huang, K | - |
dc.contributor.author | Heath Jr, RW | - |
dc.contributor.author | Andrews, JG | - |
dc.date.accessioned | 2014-01-30T03:32:20Z | - |
dc.date.available | 2014-01-30T03:32:20Z | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | IEEE Transactions on Signal Processing, 2009, v. 57 n. 5, p. 1959-1975 | - |
dc.identifier.issn | 1053-587X | - |
dc.identifier.uri | http://hdl.handle.net/10722/194235 | - |
dc.description.abstract | Feedback of quantized channel state information (CSI), called limited feedback, enables transmit beamforming in multiple-input-multiple-output (MIMO) wireless systems with a small amount of overhead. Due to its efficiency, beamforming with limited feedback has been adopted in several wireless communication standards. Prior work on limited feedback commonly adopts the block fading channel model where temporal correlation in wireless channels is neglected. In this paper, we consider temporally correlated channels and design single-user transmit beamforming with limited feedback. Analytical results concerning CSI feedback are derived by modeling quantized CSI as a first-order finite-state Markov chain. These results include the information rate of the CSI quantizer output, the bit rate a CSI feedback channel is required to support, and the effect of feedback delay on throughput. In particular, based on the theory of Markov chain convergence rate, feedback delay is proved to reduce the throughput gain due to CSI feedback at least exponentially. Furthermore, an algorithm is proposed for CSI feedback compression in time. Combining the results in this work leads to a new method for designing limited feedback beamforming as demonstrated by a design example. © 2009 IEEE. | - |
dc.language | eng | - |
dc.relation.ispartof | IEEE Transactions on Signal Processing | - |
dc.subject | Array signal processing | - |
dc.subject | Doppler effect | - |
dc.subject | Feedback communication | - |
dc.subject | Markov processes | - |
dc.subject | Time-varying channels | - |
dc.subject | Vector quantization | - |
dc.title | Limited feedback beamforming over temporally-correlated channels | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/TSP.2009.2014272 | - |
dc.identifier.scopus | eid_2-s2.0-65649116192 | - |
dc.identifier.volume | 57 | - |
dc.identifier.issue | 5 | - |
dc.identifier.spage | 1959 | - |
dc.identifier.epage | 1975 | - |
dc.identifier.isi | WOS:000265437900023 | - |
dc.identifier.issnl | 1053-587X | - |