Joint Iterative Time-Variant Channel Estimation and Multi-User Detection for MIMO-OFDM Systems

Author

Rossi, Pierluigi Salvo ; Müller, Ralf R.

Author_Institution

Norwegian Univ. of Sci. & Technol., Trondheim

fYear

2007

fDate

26-30 Nov. 2007

Firstpage

4263

Lastpage

4268

Abstract

This paper presents an iterative receiver for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems. The receiver performs channel estimation and multi-user detection, with soft information iteratively provided by the single-user decoders. Time- variance is effectively taken into account exploiting the properties of the discrete prolate spheroidal (DPS) sequences. Simulation results for the performance are presented in terms of bit error rate (BER) vs signal-to-noise ratio (SNR), showing how the single-user bound (SUB) is approached in a few iterations.

Keywords

channel estimation; error statistics; multiuser detection; radio receivers; MIMO system; OFDM system; bit error rate; channel estimation; discrete prolate spheroidal sequences; iterative receiver; multiple-input multiple-output system; multiuser detection; orthogonal frequency division multiplexing system; signal-to-noise ratio; single-user decoder; Bit error rate; Channel estimation; Frequency conversion; Iterative decoding; MIMO; Multiuser detection; OFDM; Receiving antennas; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE

Conference_Location

Washington, DC

Print_ISBN

978-1-4244-1042-2

Electronic_ISBN

978-1-4244-1043-9

Type

conf

DOI

10.1109/GLOCOM.2007.811

Filename

4411721