Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Digest of Technical Papers - IEEE International Conference on Consumer Electronics |
| Pages | 437-438 |
| Number of pages | 2 |
| DOIs | |
| Publication status | Published - 2011 Mar 28 |
| Event | 2011 IEEE International Conference on Consumer Electronics, ICCE 2011 - Las Vegas, NV, United States Duration: 2011 Jan 9 → 2011 Jan 12 |
Other
| Other | 2011 IEEE International Conference on Consumer Electronics, ICCE 2011 |
|---|---|
| Country | United States |
| City | Las Vegas, NV |
| Period | 11/1/9 → 11/1/12 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Industrial and Manufacturing Engineering
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Cite this
Park, J., Ha, Y., & Chung, W. (2011). Reduced complexity MLSD equalizers based on bidirectional DFEs. In Digest of Technical Papers - IEEE International Conference on Consumer Electronics (pp. 437-438). [5722670] https://doi.org/10.1109/ICCE.2011.5722670