Low complexity quasi-optimum Decision Feedback Equalizer design for high rate ultra-wideband communication
Parameter design of Decision Feedback Equalization (DFE) in high rate DS-UWB system is involved with a challenge in the absence of practical optimized strategy, while the parameter group including the feedforward filter (FFF) length N f , the feedback filter (FBF) length N b , and decision delay D g...
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| creator | Wujie Wen Yukui Pei Chunhua Geng Liang Zhu Ning Ge |
| description | Parameter design of Decision Feedback Equalization (DFE) in high rate DS-UWB system is involved with a challenge in the absence of practical optimized strategy, while the parameter group including the feedforward filter (FFF) length N f , the feedback filter (FBF) length N b , and decision delay D greatly affects both performance and complexity. In this paper, an efficient method aiming at achieving quasi-optimum performance with the low hardware cost is developed. First, the complicated equivalent statistic channel before DFE is modeled and its length is derived from the introduced energy criteria by semi-analytical approach. Second, based on the obtained N b , and Branch-Tree-Search(BTS) theorem, we introduce a new rule SIR DFE , to global search the optimized parameters. Numerical simulation results show that our strategy is both efficient and effective. |
| doi_str_mv | 10.1109/ICOSP.2010.5656488 |
| format | Conference Proceeding |
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| identifier | ISSN: 2164-5221 |
| ispartof | IEEE 10th INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS, 2010, p.1593-1596 |
| issn | 2164-5221 |
| language | eng |
| recordid | cdi_ieee_primary_5656488 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Channel models Complexity theory Decision Feedback Equalization (DFE) Decision feedback equalizers Delay equivalent channel Fading Niobium parameter design System analysis and design ultra-wideband (UWB) |
| title | Low complexity quasi-optimum Decision Feedback Equalizer design for high rate ultra-wideband communication |
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