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

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2 Author(s)
Pierluigi Salvo Rossi ; Norwegian Univ. of Sci. & Technol., Trondheim ; Ralf R. Muller

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.

Published in:

IEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference

Date of Conference:

26-30 Nov. 2007