DocumentCode
2160415
Title
Soft decision metrics for differentially encoded QPSK
Author
Bisplinghoff, A. ; Cabirol, C. ; Langenbach, S. ; Sauer-Greff, W. ; Schmauss, B.
Author_Institution
Univ. of Erlangen, Erlangen, Germany
fYear
2011
fDate
18-22 Sept. 2011
Firstpage
1
Lastpage
3
Abstract
We investigate phase slip aware soft decision metrics for coherently demodulated differentially encoded QPSK. A low-complexity approximation of a suitable metric has negligible penalty with practical soft decoders and is robust against residual phase noise.
Keywords
Viterbi decoding; differential detection; matrix algebra; optical signal detection; phase noise; quadrature phase shift keying; QPSK; coherent detection; differentially encoded modulation; residual phase noise; soft decision metrics; soft decoders; Approximation methods; Bit error rate; Decoding; Measurement; Phase noise; Phase shift keying; Signal to noise ratio;
fLanguage
English
Publisher
ieee
Conference_Titel
Optical Communication (ECOC), 2011 37th European Conference and Exhibition on
Conference_Location
Geneva
ISSN
Pending
Print_ISBN
978-1-4577-1918-9
Type
conf
Filename
6066017
Link To Document