TY - GEN
T1 - Reduced complexity MLSD equalizers based on bidirectional DFEs
AU - Park, Jangwoo
AU - Ha, Youngsun
AU - Chung, Wonzoo
PY - 2011
Y1 - 2011
N2 - We propose a reduced complexity maximum likelihood sequence detection (MLSD) equalizer for large size constellation signals such as 8-VSB using bidirectional decision feedback equalizers (DFEs). We apply reduced-length two-level Viterbi algorithm to select one of two non-identical symbol estimates produced by a bidirectional DFE. Therefore, the computationally expensive MLSD algorithm is applied sparingly for two-level signals with the effective channel length shorter than the original channel, regardless of the original constellation size of the symbols. Simulations results show that the proposed algorithm outperforms existing combination schemes based on bidirectional DFEs, especially for large size constellation.
AB - We propose a reduced complexity maximum likelihood sequence detection (MLSD) equalizer for large size constellation signals such as 8-VSB using bidirectional decision feedback equalizers (DFEs). We apply reduced-length two-level Viterbi algorithm to select one of two non-identical symbol estimates produced by a bidirectional DFE. Therefore, the computationally expensive MLSD algorithm is applied sparingly for two-level signals with the effective channel length shorter than the original channel, regardless of the original constellation size of the symbols. Simulations results show that the proposed algorithm outperforms existing combination schemes based on bidirectional DFEs, especially for large size constellation.
UR - http://www.scopus.com/inward/record.url?scp=79952938648&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79952938648&partnerID=8YFLogxK
U2 - 10.1109/ICCE.2011.5722670
DO - 10.1109/ICCE.2011.5722670
M3 - Conference contribution
AN - SCOPUS:79952938648
SN - 9781424487127
T3 - Digest of Technical Papers - IEEE International Conference on Consumer Electronics
SP - 437
EP - 438
BT - 2011 IEEE International Conference on Consumer Electronics, ICCE 2011
T2 - 2011 IEEE International Conference on Consumer Electronics, ICCE 2011
Y2 - 9 January 2011 through 12 January 2011
ER -