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Per-Tone Equalization for MIMO-OFDM Systems

Overview This paper focuses on Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems, where the MIMO channel order is larger than the length of the Cyclic Prefix (CP). By swapping the filtering operations of the MIMO channel and the Fast Fourier Transform (FFT), it is shown that each tone of a MIMO OFDM system can be viewed as a MIMO Single-Carrier (SC) system. As a result, the existing equalization approach for MIMO SC systems can be applied to each tone of a MIMO OFDM system. This so-called PerTone EQualization (PTEQ) approach for MIMO OFDM systems is an attractive alternative for the recently developed Time-domain EQualization (TEQ) approach for MIMO OFDM systems.

Further White Paper Details
Publisher	Katholieke Universiteit Leuven	File Format	PDF
Date Published	May 2003
Format	White Papers
Topics	Wireless LAN, Mobile - Wireless Communications

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