Increasing data throughput in HF channel by decision feedback equalizer employing MC-FQRD-RLS algorithm and weight extraction in data mode
Subject Areas : Specialyahya ravaie 1 * , Mohammad mahdinejadnouri 2 , mohammadhosein madani 3
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Keywords: HF channel, throughput, Decision feedback equalizer (DFE), Adaptive filtering, Weight extraction,
Abstract :
Increasing data throughput of Multipath time-varying HF channel by employing decision feedback equalization is addressed. In this paper, we propose multichannel FQRD-RLS adaptive filtering algorithm employing weight extraction in Decision-directed mode. A comparison between this technique and IQRD-RLS algorithm is performed. Simulation is conducted under channel parameters with respect to MIL-STD-188-110B. The results show higher data throughput in a frame with acceptable computational cost. It is also shown that the achieved data throughput is as same as using MC-FQRD-RLS algorithm in Full-Iteration equalization mode, at a much lower computational cost.