Combining of Forward and Backward Multiple-Symbol Differential Sphere Decoding for Turbo Coded System

Author

Ching-Chi Lo ; Szu-Lin Su

Author_Institution

Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

fYear

2010

fDate

16-19 May 2010

Firstpage

1

Lastpage

5

Abstract

Abstract-It is known that multiple-symbol differential detection can enhance the performance of coded differential phase shift keying (DPSK) systems over a correlated flat fading channel, but have exponential complexity. In this paper, the proposed scheme, Forward/Backward-MSDSD (FB-MSDSD), consisted of MAP-MSDSD, channel estimation and soft demodulation can reduce the complexity by dividing the original detection interval into forward and backward processes. The simulation runs show that compared with SISO MSDSD scheme, the proposed scheme has similar bit error rate but lower complexity.

Keywords

channel estimation; decoding; differential detection; differential phase shift keying; error statistics; fading channels; turbo codes; DPSK systems; SISO MSDSD scheme; bit error rate; channel estimation; differential phase shift keying systems; exponential complexity; flat fading channel; multiple symbol differential sphere decoding; soft demodulation; turbo coded system; Bit error rate; Channel estimation; Demodulation; Detectors; Differential quadrature phase shift keying; Fading; Iterative decoding; Modulation coding; Space technology; Turbo codes;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC 2010-Spring), 2010 IEEE 71st

Conference_Location

Taipei

ISSN

1550-2252

Print_ISBN

978-1-4244-2518-1

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2010.5493937

Filename

5493937