Variable Length Per Tone Equalizers for Multicarrier Systems
نویسندگان
چکیده
Per tone equalization was recently proposed as an alternative equalization structure for multicarrier systems. In this paper we propose two NLMS based variable length per tone equalization algorithms. In the first algorithm, the number of equalizer taps used in every subchannel is determined according to channel conditions which results in a reduction in equalization complexity. While the second algorithm uses the variable length equalizers concept to ameliorate the convergence speed of the NLMS initialization algorithm. Simulation results show the enhanced performance of our proposed techniques compared with conventional per tone equalization techniques.
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