On the Performance of Iterative Receivers for Interfering MIMO-OFDM Systems in Measured Channels

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Executive Summary

This paper investigates the gains harvested through base station cooperation in the up-link for a Multi-User (MU) Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system, operating in a real indoor environment. The base stations perform joint detection using an iterative receiver that carries out multi-user detection and channel estimation via soft information from the single-user decoders. Performance evaluation is carried out using real channels from an indoor dynamic dual MIMO link measurement campaign. The measured scenario represents a real life situation where two users communicate with two base stations, each with two antennas, in an environment resembling a shopping mall or an airport terminal.

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