A Channel Estimation Scheme with Switched Space-time-Frequency Orthogonal Coding for MIMO OFDM Systems

Abstract

This paper presents a channel estimation scheme that is designed for MIMO-OFDM systems capable of operating in time varying and frequency selective propagation channels. Orthogonality is applied, either in space- frequency, or in space-time dimensions interchangeably for both the preamble and pilot symbols. The efficiency of the system is based on the… (More)

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