Title :
Orthogonal affine precoder design for jointly optimal channel estimation and symbol detection in MIMO-OFDM systems
Author :
Tran, N.N. ; Tuan, H.D. ; Nguyen, Ha H.
Author_Institution :
Univ. of New South Wales, Sydney
Abstract :
Affine preceding superimposes training signals on linearly precoded data. It enhances symbol recovery and effectively identifies the frequency-selective fading channel. Previous works have shown its advantage over the standard time-multiplexed training. This paper considers orthogonal affine precoding for joint channel estimation and symbol detection in wireless MIMO-OFDM systems. Analytical and numerical results confirm its ability to efficiently identify the unknown wireless channel as well as effectively recover the data symbols, while conserving the transmission bandwidth.
Keywords :
MIMO systems; OFDM modulation; channel coding; channel estimation; fading channels; precoding; signal detection; MIMO-OFDM systems; frequency-selective fading channel; joint optimal channel estimation; orthogonal affine precoder design; standard time-multiplexed training; symbol detection; wireless channel; Bandwidth; Channel estimation; Data engineering; Design engineering; Frequency-selective fading channels; Intersymbol interference; MIMO; OFDM; Signal design; Telecommunication computing; MIMO-OFDM; channel estimation; power allocation; precoder design; superimposed training;
Conference_Titel :
Communications and Information Technologies, 2007. ISCIT '07. International Symposium on
Conference_Location :
Sydney,. NSW
Print_ISBN :
978-1-4244-0976-1
Electronic_ISBN :
978-1-4244-0977-8
DOI :
10.1109/ISCIT.2007.4392158
