New Combination MMSE Equalizer for 3GPP-LTE Uplink

Author

Li Guocai ; Yao Lijuan

Author_Institution

Sch. of Electr. Eng. & Inf. Technol., Sichuan Univ., Chengdu, China

fYear

2010

fDate

23-25 Sept. 2010

Firstpage

1

Lastpage

3

Abstract

This paper describes a new convex combination equalizer for 3GPP-LTE uplink (SC-FDMA). The overall equalizer can be regarded as a decision-directed (DD) equalizer being anchored by the convex combination equalizer. Then, the constant modulus (CM) algorithm can be smoothly switched to the DD algorithm to achieve improved tracking properties and reduced complexity. Simulation results in fast-fading channel show the fast convergence, low misadjustment and good tracking properties of this equalizer. The LTE uplink simulation also show that this scheme has better tracking performance compared to conventional Decision Feedback Equalization (DFE).

Keywords

3G mobile communication; fading channels; frequency division multiple access; least mean squares methods; radio links; 3GPP-LTE uplink; SC-FDMA; combination MMSE equalizer; constant modulus algorithm; convex combination equalizer; decision-directed equalizer; fast-fading channel; Convergence; Decision feedback equalizers; Signal processing algorithms; Simulation; Steady-state; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications Networking and Mobile Computing (WiCOM), 2010 6th International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-3708-5

Electronic_ISBN

978-1-4244-3709-2

Type

conf

DOI

10.1109/WICOM.2010.5600708

Filename

5600708