Per-Tone Equalization for MIMO-OFDM Systems


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Date: January 2008
Type: White Paper
Rating: (0)

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. 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.

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