Open Access

Multiuser Channel Estimation from Higher-Order Statistical Matrix Pencil

EURASIP Journal on Advances in Signal Processing20032002:175389

Received: 3 February 2002

Published: 2 January 2003


This paper presents a new statistical approach to the blind estimation of linear multiple-input multiple-output (MIMO) channels with finite impulse response. A matrix pencil is constructed from a set of fourth-order cumulant matrices of the channel output signals. The MIMO channel impulse responses can then be efficiently estimated from the generalized eigendecomposition of this cumulant matrix pencil. Random weighting is applied in the matrix pencil construction to improve the reliability of the algorithm. The proposed new method requires a relaxed channel identifiability condition and is robust in the sense that it does not require the exact knowledge of the MIMO channel order.


blind system identification higher order statistics multiple-input multiple-output linear systems matrix pencil identifiability condition

Authors’ Affiliations

Department of Electrical and Computer Engineering, University of California


© Liang and Ding 2002