BICM-ID interference mitigation based on joint compressed sensing and ICI compensation

Abstract

Abstract: To mitigate the deleterious influence of DME (distance measure equipment) interference on OFDM (orthogonal frequency division multiplexing) receiver of L-DACS1 (L-band digital aeronautical communications system 1), a method of BICM-ID interference mitigation based on joint compressed sensing and ICI compensation is proposed. Firstly, soft-symbols are calculated based on interleaved codeword bit soft-information of codeword bit from soft-decoder. Then, the received signal is reconstructed with soft-symbols and frequency response of channel. Blanked samples are compensated with the reconstructed received signal and the position information of blanked samples. After iteration convergence, the soft-information from ICI compensation branch is sent to compressed sensing. At the same time, soft-information from the branch of compressed sensing is sent to the branch of ICI compensation to complete iterative decoding. Simulation results show that the proposed method can significantly suppress the pulse interference of DME and improve the reliability of L -DACS1 system link transmission.

Key words: inter-carrier interference, bit-interleaved coded modulation with iterative decoding, compressed sensing

CLC Number:

V249

LIU Haitao, ZENG Weizhong. BICM-ID interference mitigation based on joint compressed sensing and ICI compensation[J]. .

References

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