Title :
Polyphase decision-feedback sequence estimation
Author :
Dou, Huaiyu ; Bi, Guangguo
Author_Institution :
Dept. of Wireless Eng., Southeast Univ., Nanjing, China
fDate :
2/3/2000 12:00:00 AM
Abstract :
Polyphase decision-feedback sequence estimation (PDFSE) is a generalised sequence estimation algorithm that provides a tradeoff between complexity and performance in digital communications over intersymbol interference (ISI) channels. In PDFSE a sequence is divided into several polyphase components and each component estimated separately. Interphase interference (IPI) is eliminated through decision-feedback. The performance/complexity ratio of the PDFSE is superior to that of reduced-state sequence estimation (RSSE) for some channels in which the energy of the channel impulse response (CIR) is not concentrated in the front part
Keywords :
automatic repeat request; channel allocation; digital communication; intersymbol interference; PDFSE; channel impulse response; digital communications; intersymbol interference channels; performance/complexity ratio; polyphase decision-feedback sequence estimation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000201
