Performance of precoding techniques in LTE

Author

Chandrasekaran, M. ; Subramanian, Srikanth

Author_Institution

Dept. of Electron. Eng., Anna Univ., Chennai, India

fYear

2012

fDate

19-21 April 2012

Firstpage

367

Lastpage

371

Abstract

Codebook based precoding is a limited feedback structure and promising technology adopted by Long Term Evolution (LTE) which is proposed by 3GPP (Third Generation Partnership Project). An important feature of LTE systems is the MIMO mode, which is used to achieve higher spectral efficiency. Precoding is used in certain MIMO modes to improve performance. This paper presents the precoding techniques namely per-subcarrier, sub-band and wide-band precoding, the precoding matrix selection based on the post processing SNR and presents some comparison of precoding SNR Gain for wide-band, sub-band and per subcarrier precoding with that of non precoding case (NPC).

Keywords

3G mobile communication; Long Term Evolution; MIMO communication; matrix algebra; precoding; 3GPP; LTE system; Long Term Evolution; MIMO mode; SNR; codebook based precoding technique; feedback structure; precoding matrix selection; subband precoding; third generation partnership project; wide-band precoding; Channel models; Correlation; Gain; MIMO; Multiplexing; Receiving antennas; Signal to noise ratio; 3GPP; Closed-Loop Transmission; E-UTRA; LTE; PMI Selection; Precoding; UMTS; UTRA;

fLanguage

English

Publisher

ieee

Conference_Titel

Recent Trends In Information Technology (ICRTIT), 2012 International Conference on

Conference_Location

Chennai, Tamil Nadu

Print_ISBN

978-1-4673-1599-9

Type

conf

DOI

10.1109/ICRTIT.2012.6206803

Filename

6206803