Journal of Communications and Networks

  • 제11권3호
  • /
  • Pages.271-278
  • /
  • 2009
  • /
  • 1229-2370(pISSN)
  • /
  • 1976-5541(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

A Multicoded-PPM Scheme for High Data Rate UWB Communication Systems

  • lung, Sung-Yoon (School of Electronic Engineering, Communication Engineering and Computer Science, Yeungnam University) ;
  • Park, Dong-Jo (School of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology (KAIST))
  • 발행 : 2009.06.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A new modulation scheme called multicoded-pulse position modulation (MC-PPM) is proposed for an ultrawideband (UWB) impulse radio communication system. The multicoded signal is generated by using several orthogonal codes for transmitting data simultaneously. Then, each multi-level value of the multicoded signal is converted to pulse position which results in not only an improved data rate, but also a processing gain in reception, delivering the power-efficient benefit of PPM and guaranteeing the low pulse energy for UWB systems. We notice that the modulation of multi-level values of the multicoded signal to pulse position is more efficient in terms of achievable data rate than the modulation of transmitting data based on other PPM schemes within given bandwidth and pulse energy. Therefore, as a performance measure, we focus on the achievable data rate (link capacity) of the proposed scheme and analyze it theoretically. Through simulation, we compare the link capacity of the MC-PPM scheme and other PPM schemes, such as M -ary PPM and multiple PPM. With the fixed bandwidth and same pulse energy condition, the UWB system based on the proposed MC-PPM scheme shows good link capacity and an increased data rate as L increases, which is contrary to other PPM schemes.

키워드

참고문헌

  1. K. Siwaik and D. Mckeown, Ultra-Wideband Radio Technology. John Wiley & Sons, Ltd., 2004
  2. FCC ET Docket 98-153, 'First report and order in the matter of revision of part 15 of the commission's rules regarding ultra-wideband transmission wystems,' FCC 02-48, Apr. 2002
  3. W. Zhuang, X. Shen, and Q. Bi, 'Ultra-wideband wireless communications,' Wireless Commun. & Mobile Computing, vol. 3, pp. 663-685, Sept 2003 https://doi.org/10.1002/wcm.149
  4. R. A. Scholtz, 'Multiple access with time-hopping impulse modulation,' in Proc. IEEE Military Commun. Conf.， Oct. 1993. pp. 447-450
  5. M. Z. Win and R. A. Scholtz, 'UWB TH-SSMA impulsε radio for wireless multiple-access communication,' IEEE Trans. Commun., vol. 48, no. 4, pp. 679-691 , Apr. 2000 https://doi.org/10.1109/26.843135
  6. J. G. Proakis, Digital Communications. 4th ed. McGraw-Hill, 2000
  7. C. Mitchell and R. Kohno, 'High data rate transmissions using orthogonal modified hermite pulses in UWB communications,' in Proc. ICT., Feb 2003, pp.1278-1283
  8. F. Ramirez-Mirelez, ' Performance of UWB SSMA using time hopping and M-ary PPM,' IEEE J. Sel. Areas Commun.， vol. 19, no. 6, pp. 1186-1196, June 2001 https://doi.org/10.1109/49.926374
  9. M. K. Simon and V. A. Vilnrotter, 'Performance analysis and tradoffs for dual-pulse PPM on optical communication channels with direct detection,' IEEE Trans. Commun., vol. 52, no. 11, pp. 1969-1979, Nov. 2004 https://doi.org/10.1109/TCOMM.2004.836554
  10. F. Ono and H. Habuchi, 'CDMA performance of the spread spectrum modified multipulse PPM system,' in Proc. WPMC., Oct. 2003
  11. F. Ramirez-Mireles, 'Performance of UWB N -orthogonal PPM in AWGN and multipath channels,' IEEE Trans. Veh. Technol., vol. 56, no. 3, pp 1272-1285, May 2007 https://doi.org/10.1109/TVT.2007.895488
  12. R. C. Qiu, H. Liu, and X. Shen, 'Ultra-wideband for multiple access communications,' IEEE Commun. Mag., vol. 43, no. 2, pp. 80-87, Feb. 2005 https://doi.org/10.1109/MCOM.2005.1391505
  13. N. V. Kokkalis, P. T. Mathiopoulos, G. K. Karagiannidis, and C. S. Koukourlis, 'Performance ana1ysis of M-ary PPM TH-UWB systems in the presence of MUI and timing jitter,' IEEE J. Sel. Areas Commun., vol. 24, no. 4, pp. 822-828, Apr. 2006 https://doi.org/10.1109/JSAC.2005.863849
  14. 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
  15. A. L. Garcia, Probability and Random Processes for Electrical Engineering. 2nd ed. Addison-Wesley, 1994
  16. 'Channel modeling sub-committee report final,' IEEE P802. 15wg for WPANs, Feb. 2003
  17. B. Parr, B. L. Cho, K. Wallace, and Z. Ding, 'A novel ultra-wideband pulse design algorithm,' IEEE Commun. Lett., vol. 7, no. 5, pp. 219-221, May 2003 https://doi.org/10.1109/LCOMM.2003.812167