Show simple item record

dc.contributor.authorBenkhelifa, Fatma
dc.contributor.authorTall, Abdoulaye
dc.contributor.authorRezki, Zouheir
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-04T07:25:01Z
dc.date.available2015-08-04T07:25:01Z
dc.date.issued2014-05
dc.identifier.citationBenkhelifa, F., Tall, A., Rezki, Z., & Alouini, M.-S. (2014). On the low SNR capacity of MIMO fading channels with imperfect channel state information. 2014 12th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt). doi:10.1109/wiopt.2014.6850313
dc.identifier.isbn9783901882630
dc.identifier.doi10.1109/WIOPT.2014.6850313
dc.identifier.urihttp://hdl.handle.net/10754/564915
dc.description.abstractThe capacity of Multiple Input Multiple Output (MIMO) Rayleigh fading channels with full knowledge of channel state information (CSI) at both the transmitter and the receiver (CSI-TR) has been shown recently to scale at low Signal-to-Noise Ratio (SNR) essentially as SNR log(1=SNR), independently of the number of transmit and receive antennas. In this paper, we investigate the ergodic capacity of MIMO Rayleigh fading channel with estimated channel state information at the transmitter (CSI-T) and possibly imperfect channel state information at the receiver (CSI-R). Our framework can be seen as a generalization of previous works as it can capture the perfect CSI-TR as a special case when the estimation error variance goes to zero. In our work, we mainly focus on the low SNR regime and we show that the capacity scales as (1-α) SNR log(1=SNR), where α is the estimation error variance. This characterization shows the loss of performance due to error estimation over the perfect channel state information at both the transmitter and the receiver. As a by-product of our new analysis, we show that our framework can also be extended to characterize the capacity of MIMO Rician fading channels at low SNR with possibly imperfect CSI-T and CSI-R. © 2014 IFIP.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectchannel estimation
dc.subjectCSI-R
dc.subjectCSI-T
dc.subjectErgodic capacity
dc.subjectlow SNR
dc.subjectMIMO
dc.subjectRayleigh fading channel
dc.subjectRician fading channel
dc.titleOn the low SNR capacity of MIMO fading channels with imperfect channel state information
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journal2014 12th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)
dc.conference.date12 May 2014 through 16 May 2014
dc.conference.name2014 12th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks, WiOpt 2014
dc.conference.locationHammamet
dc.contributor.institutionOrange Labs, France
kaust.personBenkhelifa, Fatma
kaust.personRezki, Zouheir
kaust.personAlouini, Mohamed-Slim


This item appears in the following Collection(s)

Show simple item record