Radial basis function assisted turbo equalisation

This paper presents a novel turbo equalisation scheme, which employs a radial basis function (RBF) decision feedback equaliser (DFE) and the so-called Jacobian logarithmic complexity reduction technique instead of the conventional trellis-based equaliser. The proposed turbo equaliser is shown to achieve identical bit error rate (BER) performance to the conventional turbo equaliser, while incurring a factor 4.4 lower `per-iteration´ complexity in the context of 4-level quadrature amplitude modulation (4-QAM)