An improved adaptive channel prediction for MIMO-OFDM systems

Author

Zhang, Lei ; Zhen Jin ; Wenzheng Chen ; Zhang, Xianmin

Author_Institution

Inst. of Inf. & Commun. Eng., Zhejiang Univ., Hangzhou

fYear

2008

fDate

25-27 Aug. 2008

Firstpage

1008

Lastpage

1012

Abstract

This paper presents a new simplified adaptive channel prediction scheme for MIMO-OFDM system. It is based on the conjugate gradient (CG) algorithm. This simplification also uses Alamouti´s STBC code which leads to a simple decoding process. Compared with the traditional RLS algorithm, CG performances better in the decision-directed demodulation mode. And this scheme is also designed to have the capability to restrain the noise and it causes a better prediction result.

Keywords

MIMO communication; OFDM modulation; block codes; least squares approximations; recursive estimation; space-time codes; Alamouti STBC code; MIMO-OFDM systems; RLS algorithm; conjugate gradient algorithm; decision-directed demodulation mode; decoding process; improved adaptive channel prediction; Channel estimation; Character generation; MIMO; Prediction algorithms; Predictive models; Receiving antennas; Resonance light scattering; Transmitting antennas; Wideband; Wireless communication; Adaptive channel prediction; CG algorithm; MIMO-OFDM; RLS algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2008. ChinaCom 2008. Third International Conference on

Conference_Location

Hangzhou

Print_ISBN

978-1-4244-2373-6

Electronic_ISBN

978-1-4244-2374-3

Type

conf

DOI

10.1109/CHINACOM.2008.4685195

Filename

4685195