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Architectures for MIMO-OFDM Simplified Decision Directed Channel Estimation

Authors:: Minwegen, A. , Auras, D. , Deidersen, U. , Ascheid, G.
Book Title:: IEEE International Symposium on Circuits and Systems (ISCAS)
Date:: May. 2012
DOI:: 10.1109/ISCAS.2012.6271910
Language:: English
Abstract:: VLSI implementations for iterative channel estimation in MIMO-OFDM systems are a challenge for future receivers.
Additionally sufficient flexibility is required to support multi-standard multi-mode operation.
These challenges are investigated in this paper by two VLSI implementations for a MIMO-OFDM decision directed channel estimation (DDCE) algorithm:
The first application specific integrated circuit (ASIC) implementation for simplified decision directed (SIDD) MIMO-OFDM channel estimation and a custom vector processor running a SIDD software implementation.
This work shows that the software implementation of the SIDD algorithm on a custom vector processor can compete with the ASIC implementation.
Both implementations and the efficiency/flexibility trade-offs are analyzed quantitatively.
Download:: BibTeX