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Interference-mitigation based BICM-FBMC-ID receiver |
| LIN Meng1, LI Yunzhou1,2, XU Xibin1,2, WANG Jing1,2 |
1. State Key Laboratory on Microwave and Digital Communications, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;
2. Tsinghua National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China |
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Abstract Fifth generation (5G) mobile communications using asynchronous multiple access machine-to-machine communications will use non-orthogonal multicarrier signals. A filter bank-based multicarrier signal with offset quadrature amplitude modulation (FBMC/OQAM) is one candidate waveform. This study analyzed the effect of narrow band interference (NBI) and residual intrinsic interference (RⅡ) on FBMC systems. Interference mitigation models were then designed for the NBI and RⅡ for a receiver based on a combination of FBMC and bit-interleaved coded modulation with iterative decoding (BICM-ID) to further improve the performance. Simulations show that the FBMC is more robust to NBI than cyclic prefix orthogonal frequency division multiplexing (CP-OFDM). After several iterations, the receiver approaches the Genie performance bound which assumes perfectly known interference. The iterative performance of different constellation types are also compared.
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| Keywords
filter bank-based multicarrier with offset quadrature amplitude modulation (FBMC/OQAM)
bit-interleaved coded modulation with iterative decoding (BICM-ID)
narrow band interference (NBI)
residual intrinsic interference (RII)
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Issue Date: 15 August 2017
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2017,
Vol. 57
