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

  • 제30권7A호
  • /
  • Pages.568-577
  • /
  • 2005
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  • 1226-4717(pISSN)
  • /
  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지

전송률 할당 및 전력 제어를 갖는 시공간 블록 부호화한 공간 다중화 시스템의 성능 분석

Performance Analysis of Space-Time Coded Spatial Multiplexing Systems with Rate Allocation and Power Control

  • 나승건 (인하대학교 정보통신대학원 통신공학연구실) ;
  • 황현철 (인하대학교 전자공학과) ;
  • 김석호 (인하대학교 정보통신대학원) ;
  • 최선호 (인하대학교 정보통신대학원) ;
  • 곽경섭 (인하대학교 정보통신대학원)
  • 발행 : 2005.07.01
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⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 시공간 블록 부호화한 공간 다중화 시스템에서 수신안테나의 수를 송신 안테나 수의 반을 사용했을 경우, 감소하는 비트 오류 성능을 개선하기 위해, 채널 상태와 관련한 귀환 정보를 이용하여 각 송신 안테나마다 적응적으로 전송률을 할당하고 전력을 제어하는 시스템을 제안하곤 그 성능을 분석한다. 성능 분석 결과, 8개의 송신 안테나와 4개의 수신 안테나를 사용한 경우, 안테나 쌍마다 전송률과 전력을 할당하는 간단한 알고리즘을 이용하면, 동일한 전송률과 전력을 사용한 개루프 방식에 비하여, BER이 10$^{-3}$인 구간에서 약 4.5dB의 성능이 향상하는 것을 알 수 있다.

In this paper, we propose the transmission scheme for the space-time block coded spatial multiplexing systems that have adaptive rate and power allocation per each transmit antenna through the use of feedback information related to channel state. Simulation results show that the adaptive power and rate transmission scheme gain more than 4.5 dB over conventional equal-power and rate transmission scheme.

키워드

참고문헌

  1. G. J. Foschini and M. J. Gans, 'On limits of wireless communications in a fading environment when using multiple antennas,' Kluwer : Wireless Pers. Commun., vol.6, no.3, pp.311-335, 1998 https://doi.org/10.1023/A:1008889222784
  2. I. E. Telatar, 'Capacity of multi-antenna Gaussian channels,' AT&T Bell Labs Internal Tech. Memo., BL011217-950615-07TM, June 1995
  3. G. J. Foschini, 'Layered space Time architecture for wireless communication in a fading environment when using multi-element antennas,' Bell Labs Tech. J., Vol.1, no.2, pp.41-49, Aug. 1996 https://doi.org/10.1002/bltj.2015
  4. T. K. Y. Lo, 'Maximum ratio transmission,' IEEE Trans. Commun., vol.47, pp.1458-1461, Oct. 1999 https://doi.org/10.1109/26.795811
  5. J. K. Cavers, 'Single-user and multiuser adaptive maximal ratio transmission for Rayleigh channels,' IEEE Trans. Veh. Technol., vol.49, pp.2043-2050, Nov. 2000 https://doi.org/10.1109/25.901862
  6. J. Salz, 'Digital Transmission over cross-coupled linear channels,' AT&T Tech J., vol.64, no.6, pp.1147-1159, Jul.-Aug. 1985 https://doi.org/10.1002/j.1538-7305.1985.tb00269.x
  7. G. J. Foschini, 'Layered space-time architecture for wireless communication in a fading environment when using multiple antennas,' Bell Labs Tech. J., vol.1, pp.41-59, Autumn 1996 https://doi.org/10.1002/bltj.2015
  8. P. W. Wolniansky, G. D. Golden, and R. A. Valenzuela, 'V-BLAST: An architecture for realizing very high data rates over the rich-scattering wireless channel,' in Proc. USRl Int. Symp. Signals, Systems, and Electronics, Pisa, Italy, pp.295-300, Sept.-Oct. 1998
  9. E. N. Onggosanusi, A. G. Dabak, and T. A. Schmidl, 'High rate space-time block coded scheme : Performance and improvement in correlated fading channels,' in Proc. IEEE Wireless Communications and Networking Conference, vol.1, pp.194-199, Mar. 2002 https://doi.org/10.1109/WCNC.2002.993489
  10. Texas Instruments, 'Double-STTD scheme for HSDPA systems with four transmit antennas : Link Level Simulation Results,' TSG-R WG1 document, TSGR1#20(01)0458, Busan, Korea, 21-24, May 2001.
  11. S. Catreux, D. Gesbert, and R. W. Heath, 'Adaptive modulation and MIMO coding for broadband wireless data networks,' IEEE Commun. Mag., vol.40, pp.108-115, June 2002
  12. S. Catreux, P. F. Driessen, and L. J. Greenstein, 'Data Throughputs using multiple-input multiple-output (MIMO) techniques in a noise-limited cellular environment,' IEEE Trans. Wireless Commun., vol.1, pp. 226-235, Apr. 2002 https://doi.org/10.1109/7693.994816
  13. S. Chung, H. C. Howard, and A. Lozano, 'Approaching eigenmode BLAST channel capacity using V-BALST channel capacity using V-BLAST with rate and power feedback,' Proc. IEEE Vehicular Tech. Conf (VTC2001 fall), vol.2, pp.915-919, Atlantic City, NJ, Oct. 2001
  14. S. Chung, H. C. Howard, and A. Lozano, 'Low complexity algorithm for rate quantization in extended V-BLAST,' Proc. IEEE Vehicular Technology Conf. (VTC2001 Fall), vol.2, pp.910-914, Atlantic City, NJ, Oct. 2001
  15. Hairuo Zhuang, Un Dai, Shidong Zhou, Yan Yao, 'Low complexity per-antenna rate and power control approach for closed-loop V-BLAST', IEEE Transactions on Commun., vol. 51, pp. 1783-1787, Nov. 2003 https://doi.org/10.1109/TCOMM.2003.819227
  16. W. J. Choi, R. Negi, and J.M. Cioffi, 'Combined ML and DFE decoding for the V-BLAST system,' in Proc. IEEE Int. Conf. Commun., New Orleans, LA, USA, pp. 1243-1248, June 2000
  17. A. Goldsmith, EE359 Wireless communications, Stanford, CA: Stanford Univ. Press, 2002
  18. Wubben, D., Bohnke, R.; Kuhn, V.; Kanuneyer, K.-D,, 'Reduced Complexity MMSE Detection for BLAST Architectures,' Proc. IEEE Vehicular Technology Conf. (VTC 2003 Fall).,vol.1 , pp.508-512, Oct. 2003