A new MAC design in LTE for MIMO multiuser schemes

Author

Imran, Reema ; Zorba, Nizar ; Yaacoub, Elias ; Hassanein, Hossam S. ; Verikoukis, Christos

Author_Institution

Univ. of Jordan, Amman, Jordan

fYear

2013

fDate

19-21 June 2013

Firstpage

280

Lastpage

284

Abstract

Long Term Evolution (LTE) supports closed-loop Multiple Input Multiple Output (MIMO) techniques, as a mechanism to improve system performance. An open topic since the appearance of MIMO is whether the feedback load, that is required for its operation, compensates the performance improvement in practical systems. The availability of full Channel State Information at the Transmitter (CSIT) induces a large feedback load, so that any Partial CSIT scheme has a better chance to be considered in practical systems. This paper presents an LTE-MAC design for MIMO Multiuser transmission where Partial CSIT is required. The aim is to achieve simultaneous downlink transmissions to multiple users. Mathematical expressions are provided for the performance evaluation in terms of the system sum rate and throughput.

Keywords

Long Term Evolution; MIMO communication; wireless channels; LTE-MAC design; Long Term Evolution; MIMO multiuser schemes; channel state information; closed-loop multiple input multiple output techniques; downlink transmissions; feedback load; mathematical expressions; partial CSIT scheme; system performance; system sum rate; system throughput; Downlink; Long Term Evolution; MIMO; OFDM; Throughput; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technology (ICCIT), 2013 Third International Conference on

Conference_Location

Beirut

Print_ISBN

978-1-4673-5306-9

Type

conf

DOI

10.1109/ICCITechnology.2013.6579564

Filename

6579564