Mutual information expansion for MIMO systems and capacity formulae at low SNR
dc.contributor.author | Ioannou, I. | en |
dc.contributor.author | Charalambous, Charalambos D. | en |
dc.contributor.author | Denic, S. | en |
dc.creator | Ioannou, I. | en |
dc.creator | Charalambous, Charalambos D. | en |
dc.creator | Denic, S. | en |
dc.date.accessioned | 2019-04-08T07:46:19Z | |
dc.date.available | 2019-04-08T07:46:19Z | |
dc.date.issued | 2011 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/43711 | |
dc.description.abstract | The paper introduces a new asymptotic series expansion for the mutual information of multiple-input multiple-output (MIMO) channels. The expansion approaches mutual information from below, and for low signal to noise ratio (SNR) first and second order terms give a tight lower bound. The low SNR approximation is used to derive a new water-filling power allocation at the transmitter for the case when the receiver and the transmitter have perfect channel state information. The low SNR approximation is also compared against existing approximations, while the new water-filling policy is related to minimum mean square decoding subject to power constraint. © 2010 IEEE. | en |
dc.source | IEEE Communications Letters | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79952709043&doi=10.1109%2fLCOMM.2011.012511.102277&partnerID=40&md5=ad42bb7e27e4ec242c09b0022872a463 | |
dc.subject | Communication channels (information theory) | en |
dc.subject | Transmitters | en |
dc.subject | Mimo systems | en |
dc.subject | Mutual informations | en |
dc.subject | Waterfilling | en |
dc.subject | Lower bounds | en |
dc.subject | Multiple-input multiple-output channels | en |
dc.subject | Signal to noise ratio | en |
dc.subject | Asymptotic series expansions | en |
dc.subject | Channel capacity | en |
dc.subject | Expansion | en |
dc.subject | Low signal-to-noise ratio | en |
dc.subject | Low snr | en |
dc.subject | Minimum mean squares | en |
dc.subject | Mutual information expansion | en |
dc.subject | Perfect channel state information | en |
dc.subject | Power allocations | en |
dc.subject | Power constraints | en |
dc.subject | Second orders | en |
dc.title | Mutual information expansion for MIMO systems and capacity formulae at low SNR | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1109/LCOMM.2011.012511.102277 | |
dc.description.volume | 15 | |
dc.description.issue | 3 | |
dc.description.startingpage | 329 | |
dc.description.endingpage | 331 | |
dc.author.faculty | Πολυτεχνική Σχολή / Faculty of Engineering | |
dc.author.department | Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών / Department of Electrical and Computer Engineering | |
dc.type.uhtype | Article | en |
dc.source.abbreviation | IEEE Commun Lett | en |
dc.contributor.orcid | Charalambous, Charalambos D. [0000-0002-2168-0231] | |
dc.gnosis.orcid | 0000-0002-2168-0231 |
Files in this item
Files | Size | Format | View |
---|---|---|---|
There are no files associated with this item. |