Journal of Communications and Networks

  • 제14권5호
  • /
  • Pages.518-523
  • /
  • 2012
  • /
  • 1229-2370(pISSN)
  • /
  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

Performance Comparison of Coherent and Non-Coherent Detection Schemes in LR-UWB System

  • Kwon, Soonkoo (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Ji, Sinae (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Kim, Jaeseok (Department of Electrical and Electronic Engineering, Yonsei University)
  • 투고 : 2011.05.04
  • 심사 : 2012.03.15
  • 발행 : 2012.10.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

This paper presents new coherent and non-coherent detection methods for the IEEE 802.15.4a low-rate ultra-wideband physical layer with forward error correction (FEC) coding techniques. The coherent detection method involving channel estimation is based on the correlation characteristics of the preamble signal. A coherent receiver uses novel iterated selective-rake (IT-SRAKE) to detect 2-bit data in a non-line-of-sight channel. The non-coherent detection method that does not involve channel estimation employs a 2-bit data detection scheme using modified transmitted reference pulse cluster (M-TRPC) methods. To compare the two schemes, we have designed an IT-SRAKE receiver and a MTRPC receiver using an IEEE 802.15.4a physical layer. Simulation results show the performance of IT-SRAKE is better than that of the M-TRPC by 3-9 dB.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Knowledge Economy (MKE)

참고문헌

  1. PART 15.4: Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPANs), Jan. 2007.
  2. V. Lottici, A. N. D'Andrea, and U.Mengali, "Channel estimation for ultrawideband communication," IEEE J. Sel. Areas Commun., vol. 20, no. 9, pp. 1638-1645, Dec. 2002. https://doi.org/10.1109/JSAC.2002.805053
  3. C. Carbonelli, U. Mengali, and U. Mitra, "Synchronization and channel estimation for UWB signals," in Proc. IEEE GLOBECOM, San-Francisco, USA, vol. 2, Dec. 2000, pp. 764-768.
  4. D. Wang, L. Jiang, and C. He, "A sliding window method with iterative tuning for channel estimation of UWB signals," IEICE Trans. Fundamentals, vol. E90-A, no. 9 Sept. 2007.
  5. Y. Wang and K. Chang, "Preamble-based successive cancellation scheme for the channel estimation in the DS-UWB system," IEEE Trans. Consum. Electron., vol. 53, no. 3, Aug. 2007.
  6. R. Hoctor and H. Tomlinson, "Delay-hopped transmitted-reference RF communications," in Proc. IEEE UWBST, 2002, pp. 265-269.
  7. N. V. Stralen, A. Dentinger, K.Welles, R. Gans, R. Hoctor, and H. Tomlinson, "Delay hopped transmitted reference experimental results," in Proc. IEEE UWBST, 2002, pp. 93-98.
  8. J. D. Choi and W. E. Stark, "Performance of ultra-wideband communications with suboptimal receivers in multipath channels," IEEE J. Sel. Areas Commun., vol. 20, no. 9, pp. 1754-1766, Dec. 2002. https://doi.org/10.1109/JSAC.2002.805623
  9. X. Dong, A. C. Y. Lee, and L. Xiao, "A new UWB dual pulse transmission and detection technique," in Proc. IEEE ICC, Seoul, Korea, vol. 4, May 2005, pp. 2835-2839.
  10. X. Dong, L. Xiao, and A. Lee, "Performance analysis of dual pulse transmission in UWB channels," IEEE Commun. Lett., vol. 10, no. 8, pp. 626-628, Aug. 2006. https://doi.org/10.1109/LCOMM.2006.1665132
  11. M. G. Khan, J. Nordberg, and I. Claesson, "Detection of impulse radio ultra-wideband signals using recursive transmitted reference receivers," in Proc. IEEE ICUWB, Sept. 2007, pp. 376-380.
  12. X. Dong, L. Jin, and P. Orlik, "A new transmitted reference pulse cluster system for UWB communications," IEEE Trans. Veh. Technol., vol. 57, iss. 5, pp. 3217-3224, Sept. 2008. https://doi.org/10.1109/TVT.2007.914062
  13. S. Kwon, Y. Jung, and J. Kim, "Improved channel estimation for selective rake receiver in LR-UWB system," JKICS, Korean Edition, vol. 34, no. 1C, pp. 138-144, Jan. 2009 (New Orleans, USA), Feb. 1998.
  14. Z. Liang, X. Dong, and T. A. Gulliver, "Performance of coded transmitted reference pulse cluster UWB systems," in Proc. ACSSC, Oct. 2008, pp.1990-1995.
  15. IEEE 802.15 TG4a Channel Modeling Sub Committee, "IEEE 802.15.4a channel model-final report," [Online]. Available: http://www.ieee802.org/15/pub/TG4a.html