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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Multiple Linear Chirp Based Transmission Scheme for IEEE 802.15.4a Chirp Spread Spectrum

IEEE 802.15.4a CSS를 위한다중 선형 Chirp 전송 기법

  • Kim, Kwang-yul (School of Electronic Engineering, Soongsil University) ;
  • Lee, Seung-woo (School of Electronic Engineering, Soongsil University) ;
  • Kim, Yong-sin (Department of Electronics Convergence Engineering, Kwangwoon University) ;
  • Lee, Jae-seang (Department of Electronics Convergence Engineering, Kwangwoon University) ;
  • Kim, Jin-young (The 2nd R&D Institute-1, Agency for Defense Development) ;
  • Shin, Yoan (School of Electronic Engineering, Soongsil University)
  • Received : 2015.10.13
  • Accepted : 2015.10.20
  • Published : 2015.10.31
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Abstract

In order to improve the performance of a chirp based transmission scheme, the cross-coherence property should be carefully considered. In this paper, we propose two pairs of combinations using multiple linear chirp (MLC) which can reduce the cross-coherence for improving IEEE 802.15.4a chirp spread spectrum systems. The simulation results show that the proposed MLC scheme can improve the performance by considering the cross-coherence.

Chirp 기반의 전송 기법에서 Cross-coherence는 전송 성능에 영향을 미치며, 전송 성능의 향상을 위해서는 Cross-coherence가 적은 Chirp 조합을 사용해야 한다. 이에 본 논문은 IEEE 802.15.4a CSS (Chirp Spread Spectrum)의 전송 성능을 향상시키기 위한 Chirp 조합으로 다중 선형 Chirp 기법을 제안한다. 모의실험 결과, 제안된 기법인 다중 선형 Chirp 기법이 단일 선형 Chirp 기법 보다 Cross-coherence가 적은 부분이 있음을 확인하였고, 이 조합을 이용하여 전송하였을 때 전송 성능이 향상됨을 확인하였다.

Keywords

References

  1. IEEE Standard 802.15.4a-2007, Wireless MAC and PHY Specifications for Low-Rate Wireless Personal Area Networks (WPANs), 2007.
  2. K. Chae, S.-R. Lee, and S. Yoon, "Overlapbased chirp spread spectrum transmission scheme for maritime multipath environment," J. KICS, vol. 39, no. 11, pp. 1124-1131, Nov. 2014.
  3. E. Cheng, S. Chen, and F. Yuan, "Design and detection of multilinear chirp signals for underwater acoustic sensor networks," Int. J. Distrib. Sensor Netw., Article ID 371579, pp. 1-13, 2015.
  4. X. Wang, M. Fei, and X. Li, "Performance of chirp spread spectrum in wireless communication systems," in Proc. ICSS 2008, pp. 466-469, Guangzhou, China, Nov. 2008.

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