Cost function adaptivity in bussgang filtering
Simone Fiori · Electronics Letters · 2003
Classical bussgang algorithms require hypothesising deconvolution noise level, while flexible-estimator based algorithms are endowed with learnable parameters that accumulate knowledge on source and channel characteristics. Remarkably, the adaptivity of parameters induces cost function adaptivity and makes the algorithm ‘more blind’. Hence the cost function adaptivity phenomenon in bussgang filtering for blind channel equalisation has been investigated.