A Generalized Algorithm for Blind Channel Identification with Linear Redundant Precoders. (11th October 2006)

• Record Type: Journal Article
• Authors: Su Su, Borching Borching; Vaidyanathan Vaidyanathan, P. P. P. P.
• Other Names: Phoong Phoong See-May See-May Academic Editor.
• Is Part Of: EURASIP journal on advances in signal processing. Volume 2007(2007)
• Publication Date: 2006-10-11
• Subjects: Signal processing -- Periodicals; Traitement du signal; Signal processing; Periodicals; 621.3822
• DOI: 10.1155/2007/25672
• Languages: English
• ISSNs: 1687-6172

Abstract

Abstract : It is well known that redundant filter bank precoders can be used for blind identification as well as equalization of FIR channels. Several algorithms have been proposed in the literature exploiting trailing zeros in the transmitter. In this paper we propose a generalized algorithm of which the previous algorithms are special cases. By carefully choosing system parameters, we can jointly optimize the system performance and computational complexity. Both time domain and frequency domain approaches of channel identification algorithms are proposed. Simulation results show that the proposed algorithm outperforms the previous ones when the parameters are optimally chosen, especially in time-varying channel environments. A new concept of generalized signal richness for vector signals is introduced of which several properties are studied.