Turbo Channel Estimation for Bit-interleaved Coded Modulation
نویسندگان
چکیده
This contribution deals with code-aided channel estimation for bit-interleaved coded modulation (BICM) for singleand multi-antenna systems. Based on the Expectation-Maximization algorithm, a low-complexity estimator is derived. The receiver iterates between estimation and detection and operates by accepting soft information from the detector. Through computer simulations the proposed estimator, and variations thereof, are investigated in terms of computational complexity, BER performance and mean square error (MSE) performance. Furthermore, the impact of the symbol mapping is investigated.
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