Efficient Doubly-Iterative Frequency Domain Turbo-Equalization For Single-Carrier Transmission over MIMO ISI Channel

Author

Chtourou, Sami ; Berthet, A.O. ; Visoz, Raphaël

Author_Institution

France Telecom, Issy Les Moulineaux

fYear

2006

fDate

19-21 June 2006

Firstpage

254

Lastpage

261

Abstract

In this paper, frequency-domain implementation of a block turbo-equalizer where ISI suppression and CAI resolution are performed separately is presented. This functional split allows deriving efficient low complexity structures based on a modified doubly iterative architecture which ensure better tradeoff between performance and complexity. We focus on a modified doubly-iterative and hybrid structure where further complexity reduction is obtained by relaxing the criterion retained for ISI suppression (max-SNR instead of MMSE) from a given iteration. Simulation results show the efficiency of such modified architectures in the case of a realistic spatially correlated MIMO channel

Keywords

MIMO systems; correlation theory; equalisers; frequency-domain analysis; interference suppression; intersymbol interference; iterative methods; turbo codes; CAI resolution; ISI suppression; block turbo-equalizer; coantenna interference; doubly iterative architecture; frequency-domain implementation; single-carrier transmission; spatially correlated MIMO channel; Computational complexity; Computer aided instruction; Convergence; Discrete Fourier transforms; Equalizers; Frequency domain analysis; Intersymbol interference; Iterative decoding; MIMO; Peak to average power ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless and Mobile Computing, Networking and Communications, 2006. (WiMob'2006). IEEE International Conference on

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0494-0

Type

conf

DOI

10.1109/WIMOB.2006.1696390

Filename

1696390