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| Content Provider | IET Digital Library |
|---|---|
| Author | Wu, Jingxian Wang, Longbao Xiao, Chengshan |
| Abstract | This study presents a low-complexity soft-interference cancellation equaliser (SICE) for the turbo detection of multiple-input–multiple-output systems operating in time dispersive channels. The SICE contains three time-invariant linear filters: a feedforward filter, a causal feedback filter and an anti-causal feedback filter. The feedforward filter is designed to suppress the intersymbol interference because of channel time dispersion and the multiplexing interference from multiple transmit antennas. The causal (or anti-causal) feedback filter is developed to remove the residual interference caused by the symbols transmitted before (or after) the symbol under detection. The filters are designed by analysing the statistical properties of soft decisions. The performance of the proposed SICE is verified through both extrinsic information transfer (EXIT) chart analysis and computer simulations. The EXIT chart analysis shows that, because of the inclusion of the anti-causal soft decision, the SICE performance approaches the ideal matched filter bound as the iteration progresses. Consequently, the proposed SICE achieves significant performance gains over conventional equalisers. |
| Starting Page | 728 |
| Ending Page | 735 |
| Page Count | 8 |
| ISSN | 17518628 |
| Volume Number | 9 |
| e-ISSN | 17518636 |
| Issue Number | Issue 5, Mar (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/9/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2014.0396 |
| Journal | IET Communications |
| Publisher Date | 2015-02-12 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Antenna Array Anti-causal Feedback Filter Channel Time Dispersion Computer Simulations Electromagnetic Compatibility Extrinsic Information Transfer Chart Analysis Feedforward Filter Interference Interference Suppression Intersymbol Interference Low-complexity Soft-interference Cancellation Equaliser MIMO Communication Modulation And Coding Method Multilevel Modulations Multiple-input–multiple-output Systems Multiplexing Interference Radio Link And Equipment Time Dispersive Channel Time-invariant Linear Filter Transmit Antenna Transmitting Antenna Turbo Detection |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering Computer Science Applications |
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