The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Multipath Matching Pursuit Using Prior Information

사전 정보를 이용한 다중경로 정합 추구

  • Min, Byeongcheon (Department of Information and Communication, Inha University) ;
  • Park, Daeyoung (Department of Information and Communication, Inha University)
  • Received : 2016.04.25
  • Accepted : 2016.06.17
  • Published : 2016.06.30
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Abstract

Compressive sensing can recover an original sparse signal from a few measurements. Its performance is affected by the number of non-zero elements in the signal. The knowledge of partial locations of non-zero elements can improve the recovery performance. In this paper, we apply the partial location knowledge to the multipath matching pursuit. The numerical results show it improves the signal recovery performance and the channel estimation performance in the ITU-VB channel.

압축센싱은 성긴(sparse)신호에 대해서 적은 수의 샘플로 원래의 신호를 복원할 수 있다. 압축센싱의 성능은 복원하려는 신호의 non-zero 개수에 영향을 받는다. 신호의 non-zero 위치를 부분적으로 알면 압축센싱의 성능을 향상시킬 수 있다. 본 논문에서는 신호의 부분적인 non-zero 위치를 Multipath matching pursuit(MMP)에 적용한다. 실험을 통해서 신호복원이 개선되고 ITU-VB 채널 환경에서 채널추정 성능이 개선됨을 확인한다.

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References

  1. E. Matusiak and Y. Eldar, "Sub-Nyquist sampling of short pulses," IEEE Trans. Sig. Process., vol. 60, no. 3, pp. 1134-1148, Mar. 2012. https://doi.org/10.1109/TSP.2011.2176934
  2. S. Kwon, J. Wang, and B. Shim, "Multipath matching pursuit," IEEE. Trans. Inf. Theory, vol. 60, no. 5, pp. 2986-3001, Nov. 2014. https://doi.org/10.1109/TIT.2014.2310482
  3. L. Dai, Z. Wang, and Z. Yang, "Compressive sensing based time domain synchronous OFDM transmission for vehicular communications," IEEE. J. Sel. Areas Commun., vol. 31, no. 9, pp. 460-469, Sept. 2013. https://doi.org/10.1109/JSAC.2013.SUP.0513041
  4. B. Min and D. Park, "Sparse channel estimation based on combined measurements in OFDM Systems," J. KICS, vol. 41, no. 1, pp. 1-11, Jan. 2016. https://doi.org/10.7840/kics.2015.41.1.1
  5. M. Sim and C. Chae, "Compressed channel feedback for correlated massive MIMO systems," IEEE J. Commun., vol. 18, no. 1, pp. 95-104, Feb. 2016.