Abstract
We propose a reduced complexity maximum likelihood sequence detection (MLSD) equalizer for wireless communications using bidirectional decision feedback equalizers (DFEs). We apply reducedlength two-level estimates produced by a bidirectional DFE. Therefore, the computationally expensive MLSD algorithm is applied sparingly for twolevel signals with the effective channel length shorter than the original channel, regardless of the original constellation size of the symbols. Simulation results show that the proposed algorithm outperforms existing combination schemes based on bidirectional DFEs, especially for large constellations.
| Original language | English |
|---|---|
| Pages (from-to) | 3432-3436 |
| Number of pages | 5 |
| Journal | IEICE Transactions on Communications |
| Volume | E95-B |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2012 Nov 1 |
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Keywords
- Bidirectional arbitrated DFE (BAD)
- Bidirectional DFE
- Equalizer
- MLSD equalizer
- Time-reversal diversity
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Networks and Communications
- Software
Cite this
Reduced complexity MLSD equalizers based on bidirectional DFEs. / Park, Jangwoo; Ha, Youngsun; Chung, Wonzoo.
In: IEICE Transactions on Communications, Vol. E95-B, No. 11, 01.11.2012, p. 3432-3436.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Reduced complexity MLSD equalizers based on bidirectional DFEs
AU - Park, Jangwoo
AU - Ha, Youngsun
AU - Chung, Wonzoo
PY - 2012/11/1
Y1 - 2012/11/1
N2 - We propose a reduced complexity maximum likelihood sequence detection (MLSD) equalizer for wireless communications using bidirectional decision feedback equalizers (DFEs). We apply reducedlength two-level estimates produced by a bidirectional DFE. Therefore, the computationally expensive MLSD algorithm is applied sparingly for twolevel signals with the effective channel length shorter than the original channel, regardless of the original constellation size of the symbols. Simulation results show that the proposed algorithm outperforms existing combination schemes based on bidirectional DFEs, especially for large constellations.
AB - We propose a reduced complexity maximum likelihood sequence detection (MLSD) equalizer for wireless communications using bidirectional decision feedback equalizers (DFEs). We apply reducedlength two-level estimates produced by a bidirectional DFE. Therefore, the computationally expensive MLSD algorithm is applied sparingly for twolevel signals with the effective channel length shorter than the original channel, regardless of the original constellation size of the symbols. Simulation results show that the proposed algorithm outperforms existing combination schemes based on bidirectional DFEs, especially for large constellations.
KW - Bidirectional arbitrated DFE (BAD)
KW - Bidirectional DFE
KW - Equalizer
KW - MLSD equalizer
KW - Time-reversal diversity
UR - http://www.scopus.com/inward/record.url?scp=84868259372&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84868259372&partnerID=8YFLogxK
U2 - 10.1587/transcom.E95.B.3432
DO - 10.1587/transcom.E95.B.3432
M3 - Article
VL - E95-B
SP - 3432
EP - 3436
JO - IEICE Transactions on Communications
JF - IEICE Transactions on Communications
SN - 0916-8516
IS - 11
ER -