Title: RLS and its improved algorithms in MIMO-OFDM system

Authors: Mei Li; Xiang Wang; Xiaoming Zhang; Ke Jia

Addresses: Department of Computer Science and Technology, Institute of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China. ' Department of Computer Science and Technology, Institute of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China. ' Department of Computer Science and Technology, Institute of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China. ' Department of Network Engineering, Institute of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, 050018, China

Abstract: This paper will analyse the RLS algorithm and its improved algorithms, QRD-RLS and IQRD-RLS algorithms. QRD-RLS and IQRD-RLS algorithms can reduce the complexity of RLS algorithm effectively. Then, we apply these three algorithms in MIMO-OFDM system, and we do some simulations on these three algorithms. From the simulation, we can see that the performance of the QRD-RLS and IQRD-RLS algorithms is better than RLS algorithm.

Keywords: multiple-input multiple-output; MIMO; orthogonal frequency division multiplexing; OFDM; channel estimation; RLS algorithm.

DOI: 10.1504/IJMIC.2012.047734

International Journal of Modelling, Identification and Control, 2012 Vol.16 No.3, pp.246 - 250

Published online: 17 Dec 2014 *

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