Title :
DF-DD for channels with phase noise
Author :
Schober, Robert ; Lampe, Lutz H -J ; Ma, Yao ; Pasupathy, Subbarayan
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Canada
fDate :
6/1/2003 12:00:00 AM
Abstract :
In this letter, we design decision-feedback differential detection (DF-DD) schemes for channels with phase noise. If the DF-DD feedback filter is properly optimized, a performance similar to that of a more complex scheme, recently reported by Chiavaccini and Vitetta, based on expectation maximization, can be achieved. However, it is also shown that an error floor is unavoidable for channels with phase noise. If a constraint is introduced, the DF-DD receiver can be made robust against unknown frequency offsets.
Keywords :
automatic repeat request; differential detection; differential phase shift keying; feedback; optimisation; phase noise; decision-feedback differential detection; error floor; expectation maximization; feedback filter; phase noise; unknown frequency offsets; AWGN; Constraint optimization; Differential phase shift keying; Differential quadrature phase shift keying; Feedback; Filters; Frequency; Noise robustness; Phase detection; Phase noise;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2003.813269
