TY - JOUR
T1 - Performance of iterative soft decision feedback equalizers for single-carrier transmission
AU - Jeon, Taehyun
AU - Yoon, Seokhyun
AU - Kim, Kyungho
N1 - Publisher Copyright:
© The Korean Institute of Electrical Engineers.
PY - 2017/5
Y1 - 2017/5
N2 - In this paper, we consider iterative soft-decision feedback equalizers (sDFE), a.k.a. turbo equalizers for single-carrier transmission. Turbo equalizer takes log-likelihood ratio (LLR) feedback from channel decoder and convert the LLR into symbol estimates and variances to be used for the LLR update at the sDFE. Specifically, we consider both time domain and frequency-domain sDFE and compare their performances. The results shows that frequency-domain sDFE performs better than time-domain one and also that considerable gain can be obtained especially when the channel has deep nulls.
AB - In this paper, we consider iterative soft-decision feedback equalizers (sDFE), a.k.a. turbo equalizers for single-carrier transmission. Turbo equalizer takes log-likelihood ratio (LLR) feedback from channel decoder and convert the LLR into symbol estimates and variances to be used for the LLR update at the sDFE. Specifically, we consider both time domain and frequency-domain sDFE and compare their performances. The results shows that frequency-domain sDFE performs better than time-domain one and also that considerable gain can be obtained especially when the channel has deep nulls.
KW - Frequency domain equalizer
KW - Soft decision feedback equalizer
KW - Turbo equalization
UR - http://www.scopus.com/inward/record.url?scp=85017513523&partnerID=8YFLogxK
U2 - 10.5370/JEET.2017.12.3.1280
DO - 10.5370/JEET.2017.12.3.1280
M3 - Article
AN - SCOPUS:85017513523
SN - 1975-0102
VL - 12
SP - 1280
EP - 1285
JO - Journal of Electrical Engineering and Technology
JF - Journal of Electrical Engineering and Technology
IS - 3
ER -