Intercarrier interference cancellation based on iterative detection algorithm for OFDM systems over time-varying channels
In order to effectually cancel the intercarrier interference (ICI) in the OFDM (orthogonal frequency-division multiplexing) systems, a novel iterative detection algorithm was proposed based on parallel interference cancellation. With the principle of maximize the minimum signal-to-interference and n...
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| Veröffentlicht in: | Tongxin Xuebao Jg. 27; H. 10; S. 57 - 61 |
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| Hauptverfasser: | , |
| Format: | Journal Article |
| Sprache: | Chinesisch |
| Veröffentlicht: |
Editorial Department of Journal on Communications
01.10.2006
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| Schlagworte: | |
| ISSN: | 1000-436X |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | In order to effectually cancel the intercarrier interference (ICI) in the OFDM (orthogonal frequency-division multiplexing) systems, a novel iterative detection algorithm was proposed based on parallel interference cancellation. With the principle of maximize the minimum signal-to-interference and noise power ratio, the received signal was processed by decision, reconstruction and ICI cancellation, iterative algorithm based on ICI cancellation was set up, the flow chart on signal detection was given. On the basis of analysis on time-varying channel, the influence of the normalized Doppler frequency offset on the system performance was investigated. Computer simulation results were presented. Simulation results show that the proposed scheme can improve the system performancesignificantly by using of the time diversity of time varying channel. The computational complexity can be reduced form O(N(3)) to O(N). |
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| Bibliographie: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 1000-436X |