Performance analysis of adaptive substream selection method in 3GPP LTE-Advanced system level simulation

Author

Gao, Yuan ; Li, Yi ; Yu, Hongyi ; Wang, Xianfeng ; Gao, Shihai

Author_Institution

State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China

fYear

2012

fDate

23-25 March 2012

Firstpage

325

Lastpage

328

Abstract

In Release 11 of the LTE-Advanced specification, 8×8 transmission mode is raised to support higher transmission rate. But due to different channel conditions, spatial gain will not always increase with the increasement of antennas. How to make full use of spatial resources is a problem in LTE related areas. In this paper, an adaptive substream selection method is given which is used in 8×8 MIMO scenarios of 3GPP LTE-Advanced systems. Based on feedbacks of channel information (e.g. SRS in TDD system or Channel Estimation in FDD system), we can effectively predict the optimal stream mapping method at given timeslot. A system level simulation result is given to prove the effectiveness of our method under our Matlab-Based LTE-Advanced System Level Simulation platform.

Keywords

3G mobile communication; Long Term Evolution; MIMO communication; channel estimation; 3GPP LTE-advanced system level simulation; FDD system; LTE-advanced specification; MIMO; Matlab; Release 11; SRS; TDD system; adaptive substream selection method; channel estimation; channel information; optimal stream mapping method; spatial gain; spatial resources; transmission rate; LTE-Advanced; MI-ESM; System Level Simulation; substream selection;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and its Applications (CSPA), 2012 IEEE 8th International Colloquium on

Conference_Location

Melaka

Print_ISBN

978-1-4673-0960-8

Type

conf

DOI

10.1109/CSPA.2012.6194743

Filename

6194743