Inverse QR 2D-RLS Adaptive Channel Estimation for OFDM Systems

Akshay SONI  Tanvi SHARMA  Vijaykumar CHAKKA 

Publication
IEICE TRANSACTIONS on Communications  Vol.E93-B  No.10  pp.2822-2825
Publication Date: 2010/10/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM,  2D-RLS,  IQR-2D-RLS, 

Full Text: PDF

Summary: 
This letter proposes Inverse QR two-dimensional Recursive Least Square (IQR-2D-RLS) adaptive channel estimation for Orthogonal Frequency Division Multiplexing (OFDM) systems (using Givens Rotations and Householder Transformations). It is more stable numerically than 2D-RLS algorithm. MATLAB simulations show that BER performance of IQR-2D-RLS algorithm is similar to that of 2D-RLS algorithm.