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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Seongwook Jeong Jaekyun Moon |
| Copyright Year | 2010 |
| Abstract | We utilize a pair of decision feedback equalizers (DFEs) operating in opposite directions in turbo equalization setting to remove the effect of intersymbol interference (ISI) at the receiver. With a specific residual interference processing strategy proposed, the bi-directional DFE (BiDFE) are free from any significant error propagation. A diversity combining scheme is also proposed that effectively combines the extrinsic outputs of two opposite direction DFEs to minimize any correlation that may exist between them. A resulting scheme is a low-complexity equalizer that closely approaches the performance of the much more complex BCJR algorithm at the expense of an increased number of decoder-equalizer iterations. The BiDFE turbo equalizer also provides considerably better performance than the well-known soft linear minimum mean square error (MMSE) equalizer in severe ISI channels. The performance advantages are validated with bit-error-rate (BER) simulations and extrinsic information transfer (EXIT) charts analysis. |
| Starting Page | 1 |
| Ending Page | 6 |
| File Size | 414177 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424464029 |
| ISSN | 19381883 |
| e-ISBN | 9781424464043 |
| DOI | 10.1109/ICC.2010.5502000 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-05-23 |
| Publisher Place | South Africa |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Bidirectional control Decision feedback equalizers Intersymbol interference Diversity reception Iterative decoding Mean square error methods Bit error rate Analytical models Information analysis Performance analysis |
| Content Type | Text |
| Resource Type | Article |
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