Title :
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
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;
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
DOI :
10.1109/WICOM.2010.5600708
