Combination of Zero-Forcing Nulling and Fuzzy Parallel Multistage Detection for MIMO Systems

Author

Shu-Ming, Tseng ; Hung-Chieh, Yu ; Yao-Min, Huang

Author_Institution

Nat. Taipei Univ. of Technol., Taipei

fYear

2007

fDate

19-25 June 2007

Firstpage

34

Lastpage

34

Abstract

We propose zero-forcing (ZF) nulling followed by fuzzy parallel multistage detection for multi-input multi-output system. The parallel detector consists of two or more stages, the first stage give estimate of the substreams and the second stage refines this estimate. The output can also be further iterated to improve the performance. We use ZF for the first stage and then the adaptive partial weighting for parallel detector is evaluated using the fuzzy logic. The simulation results show the uncoded error probability of our proposed method is better than that of ZF followed by improved PIC with hyperbolic tangent function.

Keywords

MIMO communication; error statistics; fuzzy set theory; MIMO system; adaptive partial weighting; error probability; fuzzy logic; fuzzy parallel multistage detection; multiinput multioutput system; zero-forcing nulling; Detectors; Error probability; Fuzzy logic; Fuzzy systems; Interference cancellation; MIMO; Multiaccess communication; Rayleigh channels; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Networking and Services, 2007. ICNS. Third International Conference on

Conference_Location

Athens

Print_ISBN

978-0-7695-2858-9

Type

conf

DOI

10.1109/ICNS.2007.45

Filename

4438283