The finite-impulse-response (fir) decision feedback equalisers (dfes) with a large number of taps are used to eliminate the intersymbol interference. In this Letter, a hybrid optimisation approach based on reweighted ...
详细信息
The finite-impulse-response (fir) decision feedback equalisers (dfes) with a large number of taps are used to eliminate the intersymbol interference. In this Letter, a hybrid optimisation approach based on reweighted l(1)-norm minimisation and the greedy algorithm is proposed to get a better estimation of the non-zero taps. first, the authors transform the problem of designing sparse fir multiple-input multiple-output dfes into an l(0)-norm minimisation problem, then use the proposed approach, which involves two stages as the preliminary selection of non-zero tap positions and re-optimisation with non-zero taps, to determine the positions and values of the non-zero taps for the firdfes. The simulation results demonstrate the effectiveness of the proposed hybrid optimisation approach.
暂无评论