Block Faded Channel Estimation for Multiuser STBC-OFDM Systems

Author

Islam, Toufiqul ; Ahmed, Imtiaz ; Mallick, Shankhanaad ; Alam, Fakhrul ; Rahman, Md Saifur

Author_Institution

Dept. of Electr. & Electron. Eng., Bangladesh Univ. of Eng. & Technol., Dhaka

fYear

2006

fDate

14-17 Nov. 2006

Firstpage

1

Lastpage

4

Abstract

Accurate channel estimation is necessary to gain the advantage of space time coding for decoding purposes. Most of the previous work on orthogonal frequency division multiplexed (OFDM) channel estimation focused on single user systems. Hence, they are inappropriate in the multiuser communication systems. In this paper, we proposed a novel multiuser channel estimation technique based on simple blocked pilot grid for space time block coded (STBC)-OFDM systems. We simulated the proposed scheme for slowly faded quasi-static channel. LS and MMSE estimator performance for different number of users are also analyzed

Keywords

OFDM modulation; block codes; channel coding; channel estimation; fading channels; least mean squares methods; multiuser channels; space-time codes; MMSE estimator performance; STBC-OFDM system; faded quasistatic channel; minimum mean squared error; multiuser channel estimation technique; orthogonal frequency division multiplexing; space time block coding; Channel estimation; Decoding; Fading; MIMO; Multiuser channels; OFDM; Receiving antennas; Space technology; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2006. 2006 IEEE Region 10 Conference

Conference_Location

Hong Kong

Print_ISBN

1-4244-0548-3

Electronic_ISBN

1-4244-0549-1

Type

conf

DOI

10.1109/TENCON.2006.343978

Filename

4142568