Toward a reconfigurable MIMO downlink air interface and radio resource management: the SURFACE concept

Kovács, István Z.; Ordoez, L.G.; Navarro, Miguel; Calvo, Eduard; Fonollosa, J.R.

doi:10.1109/mcom.2010.5473860

Cited by 9 publications

(1 citation statement)

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“…As a consequence, the theoretical performance gain of the MU-MIMO over SU-MIMO is expected to significantly increase in spatially correlated channels and with increasing number of transmit antenna at the enhanced Node B (eNB). Various linear and nonlinear precoding techniques and the corresponding receiver structures have been proposed in the literature in order to achieve promising MU-MIMO gains, see, for example, [8][9][10][11][12].…”

Section: Overview Of Mu-mimo In 3gpp Standardsmentioning

confidence: 99%

MU-MIMO in LTE Systems

Duplicy

Badic

Balraj

et al. 2011

J Wireless Com Network

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A relatively recent idea of extending the benefits of MIMO systems to multiuser scenarios seems promising in the context of achieving high data rates envisioned for future cellular standards after 3G (3rd Generation). Although substantial research has been done on the theoretical front, recent focus is on making Multiuser Multiple-Input Multiple-Output (MUMIMO) practically realizable. This paper presents an overview of the different MU-MIMO schemes included/being studied in 3GPP standardization from LTE (long-term evolution) to LTE Advanced. MU-MIMO system concepts and implementation aspects have been studied here. Various low-complexity receiver architectures are investigated, and their performance assessed through link-level simulations. Appealing performance offered by low-complexity interference aware (IA) receivers is notably emphasized. Furthermore, system level simulations for LTE Release 8 are provided. Interestingly, it is shown that MU-MIMO only offers marginal performance gains with respect to single-user MIMO. This arises from the limited MU-MIMO features included in Release 8 and calls for improved schemes for the upcoming releases.

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