Mismatched Detection of Turbo Block DFE Using Parallel Concatenated Scheme

Author

Li Qiang ; Li, Shaoqian

Author_Institution

Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Tech. of China, Chengdu

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

658

Lastpage

661

Abstract

A turbo-type scheme that uses parallel concatenation and turbo block decision feedback equalization (TBDFE) is proposed for transmission over linear intersymbol interference channels. The scheme can offer significant improvement in performance. The performance gain is even higher when the detector uses an imperfect channel estimate. In the case of SNR mismatch, both TBDFE and the conventional iterative block-based DFE (IBDFE) algorithms are more sensitive to SNR overestimation than underestimation.

Keywords

channel estimation; concatenated codes; decision feedback equalisers; intersymbol interference; turbo codes; wireless channels; SNR mismatch; imperfect channel estimate; iterative block-based DFE algorithms; linear intersymbol interference channels; mismatched detection; parallel concatenated scheme; parallel concatenation; turbo block DFE; turbo block decision feedback equalization; AWGN; Concatenated codes; Decision feedback equalizers; Detectors; Filters; Hydrogen; Intersymbol interference; Iterative algorithms; Performance gain; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.170

Filename

4339945