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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Seifert, Tobias Fettweis, Gerhard |
| Copyright Year | 2014 |
| Abstract | Single-carrier frequency-division multiplexing access (SC-FDMA) has been adopted as transmission scheme in Long Term Evolution (LTE) uplink to ensure low peak-to-average power ratio (PAPR). SC-FDMA inherently creates significant intersymbol interference (ISI), especially in large bandwidth scenarios. Additionally, inter-antenna interference (IAI) caused by transmitting spatially-multiplexed data streams in multiple-input multiple-output (MIMO) antenna systems further corrupts the received signal, making reliable estimation of the transmitted signal a computationally complex task. In this paper we propose an iterative receiver including a frequency-domain equalizer that mitigates both ISI and MAI jointly. The equalizer takes soft-input values in addition to the received SC-FDMA symbols into account to perform parallel interference cancellation (PIC). This soft-input is determined from decoders output values obtained in the previous receiving process, leading to equalization-decoding iterations. Simulation results for the LTE-Advanced uplink show that the proposed approach achieves considerable performance gains compared to non-iterative receivers. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 740171 |
| Page Count | 5 |
| File Format | |
| ISBN | 9781479944828 |
| DOI | 10.1109/VTCSpring.2014.7023101 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-05-18 |
| Publisher Place | South Korea |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | MIMO Frequency-domain analysis Receivers Vectors Uplink Equalizers Interference |
| Content Type | Text |
| Resource Type | Article |
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