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

  • 제36권4A호
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  • Pages.337-344
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  • 2011
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  • 1226-4717(pISSN)
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  • 2287-3880(eISSN)
한국통신학회 (The Korean Institute of Commucations and Information Sciences)
권호 표지
DOI QR코드

DOI QR Code

다중 안테나 공간 다중화 릴레이 시스템을 위한 근사 최소 비트 오율 전력 할당 방법

Approximate Minimum BER Power Allocation of MIMO Spatial Multiplexing Relay Systems

  • 황규호 (연세대학교 전기전자공학과) ;
  • 최수용 (연세대학교 전기전자공학과)
  • 투고 : 2010.10.04
  • 심사 : 2011.03.28
  • 발행 : 2011.04.30
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초록

본 논문은 모든 노드가 다중 안테나를 갖는 다중 안테나 (MIMO, multiple-input and multiple-output) 공간 다중화 (SM, spatial multiplexing) 릴레이 시스템을 비트 오율 (BER, bit error rate) 관점에서 연구한다. 제한된 전력 자원을 효율적으로 이용하기 위해서는 각 노드와 안테나에서 최적화된 전력 할당 전략이 필요하다. 본 논문은 이런 관점에서 다중 안테나 공간 다중화 릴레이 시스템을 위한 비트 오율 최소화에 기반을 둔 전력 할당 알고리즘을 제안한다. 제안된 알고리즘은 평균 비트 오율을 직접 최소화하여 얻어지며, 노드 간 (inter-node) 전력 할당 알고리즘과 안테나 간 (inter-antenna) 전력 할당 알고리즘으로 구성된다. 비트 오율 성능에 있어서, 기존의 균등 전력 할당 (EPA, equal power allocation) 알고리즘보다 추가적인 전력 소비 없이도 월등한 성능을 보인다.

In this paper, a multiple-input and multiple-output (MIMO) spatial multiplexing (SM) relay system is studied in a bit error rate (BER) sense, where every node is deployed with multiple antennas. In order to efficiently use the limited power resource, it is essential to optimally allocate the power to nodes and antennas. In this context, the power allocation (PA) algorithm based on minimum BER (MBER) for a MIMO SM relay system is proposed, which is derived by direct minimization of the average BER, and divided into inter-node and inter-antenna PA algorithm. The proposed scheme outperforms the conventional equal power allocation (EPA) algorithm without extra power consumption.

키워드

참고문헌

  1. A. J. Paulraj and T. Kailath, "Increasing capacity in wireless broadcast systems using distributed transmission/directional reception," U.S. Patent No.5,345,599, 1994.
  2. I. E. Telatar, "Capacity of multi-antenna Gaussian channels," European Trans. Tel., Vol.10, No.6, pp.585-595, Nov./Dec., 1999. https://doi.org/10.1002/ett.4460100604
  3. G. J. Foschini and M. J. Gans, "On limits of wireless communications in a fading environment when using multiple antennas," Wireless Pers. Comm., Vol.6, No.3, pp.311-335, Mar., 1998. https://doi.org/10.1023/A:1008889222784
  4. J. Guey, M. P. Fitz, M. R. Bell, and W. Kuo, "Signal design for transmitter diversity wireless communication systems over Rayleigh fading channels," in Proc. IEEE VTC, Atlanta, GA, Vol.1, pp.136-140, Apr./May, 1996.
  5. V. Tarokh, N. Seshadri, and A. R. Calderbank, "Space-time codes for high data rate wireless communication: Performance criterion and code construction," IEEE Trans. Inf. Theory, Vol.44, No.2, pp.744-765, Mar., 1998. https://doi.org/10.1109/18.661517
  6. H. Bolcskei, D. Gesbert, and A. J. Paulraj, "On the capacity of OFDM based spatial multiplexing systems," IEEE Trans. Comm., Vol.50, No.2, pp.225-234, Feb., 2002. https://doi.org/10.1109/26.983319
  7. A. Paulraj, R. Nabar, and D. Gore, Introduction to space-time wireless communications. Cambridge, UK: Cambridge University Press, May, 2003.
  8. S. M. Alamouti, "A simple transmit diversity technique for wireless communications," IEEE J. Sel. Areas Comm., Vol.16, No.8, pp.1451-1458, Oct., 1998. https://doi.org/10.1109/49.730453
  9. V. Tarokh, H. Jafarkhani, and A. Calderbank, "Space-time block codes from orthogonal designs," IEEE Trans. Inf. Theory, Vol.45, No.5, pp.1456-1467, July, 1999. https://doi.org/10.1109/18.771146
  10. H. Bolcskei, R. U. Nabar, O. Oyman and A. J. Paulraj, "Capacity Scaling Laws in MIMO Relay Networks", IEEE Trans. Wireless Comm., Vol.5, No.6, pp.1433-1444, June, 2006. https://doi.org/10.1109/TWC.2006.1638664
  11. J. N. Laneman and G. W. Wornell, "Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks," IEEE Trans. Inform. Theory, Vol. 49, No.10, pp.2415-2425, Oct., 2003. https://doi.org/10.1109/TIT.2003.817829
  12. Q. Zhang, J. Zhang, C. Shao, Y. Wang, P. Zhang, and R. Hu, "Power allocation for regenerative relay channel with Rayleigh fading," in Proc. IEEE VTC., Vol.2, pp.1167- 1171, May, 2004.
  13. J. Zhang, Q. Zhang, C. Shao, Y. Wang, P. Zhang, and Z. Zhang, "Adaptive optimal transmit power allocation for two-hop non-regenerative wireless relay system," in Proc. IEEE VTC., Vol.2, pp.1213-1217, May, 2004.
  14. I. Maric and R. D. Yates, "Bandwidth and Power Allocation for Cooperative Strategies in Gaussian Relay Networks," IEEE Trans. Inf. Theory, Vol.56, No.4, pp.1880-1889, Apr., 2010. https://doi.org/10.1109/TIT.2010.2040875
  15. M. O. Hasna and M.-S. Alouini, "Optimal power allocation for relayed transmissions over Rayleigh-fading channels," IEEE Trans. Wireless Commun., Vol.3, No.6, pp.1999-2004, Nov., 2004. https://doi.org/10.1109/TWC.2004.833447
  16. X. Deng and A. M. Haimovich, "Power allocation for cooperative relaying in wireless networks," IEEE Commun. Lett., Vol.9, No.11, pp.994-996, Nov., 2005. https://doi.org/10.1109/LCOMM.2005.11012
  17. Y. Zhao, R. Adve, and T. Lim, "Improving amplify-and-forward relay networks: optimal power allocation versus selection," in Proc. IEEE International Symposium on Information Theory (ISIT), pp.1234-1238, July, 2006.
  18. A. Bletsas, H. Shin, and M. Win, "Outageoptimal cooperative communications with regenerative relays," in Proc. Conference on Information Science and Systems (CISS), pp.632-637, Mar., 2006.
  19. A. Bletsas, H. Shin, M. Win, and A. Lippman, "Cooperative diversity with opportunistic relaying," in Proc. IEEE Wireless Communications and Networking Conference (WCNC), Vol.2, pp.1034-1039, Apr., 2006.
  20. J. Luo, R. Blum, L. Cimini, L. Greenstein, and A. Haimovich, "Decode-and-forward cooperative diversity with power allocation in wireless networks," in Proc. IEEE Global Telecommunications Conference, Vol.5, pp.3048-3052, Nov., 2005.
  21. Z. Yi and I.-M. Kim, "Joint optimization of relay-precoders and decoders with partial channel side information in cooperative networks," IEEE J. Sel. Areas Commun., Vol.25, No.2, pp.447-458, Feb., 2007. https://doi.org/10.1109/JSAC.2007.070219
  22. I. Hammerstroem, M. Kuhn, and A. Wittneben, "Impact of relay gain allocation on the performance of cooperative diversity networks," in Proc. IEEE VTC., Vol.3, pp.1815- 1819, Sep., 2004.
  23. M. Abdallah and H. C. Papadopoulos, "Beamforming algorithms for decode-andforward relaying in wireless networks," in Proc. Conf. on Inform. Sciences and Systems (CISS), 2005.
  24. Y. Fan and J. S. Thompson, "On the Performance of MIMO Spatial Multiplexing Relay Channels," in Proc. IEEE ICC, Glasgow, Scotland, pp.2773-2778, June, 2007.
  25. N. Wang and S. D. Blostein, "Approximate minimum BER power allocation for MIMO spatial multiplexing systems," IEEE Trans. Comm., Vol. 55, No.1, pp.180-187, Jan., 2007. https://doi.org/10.1109/TCOMM.2006.887503
  26. A. J. Goldsmith and S. G. Chua, "Variable-rate variable-power MQAM for fading channels," IEEE Trans. Commun., Vol.45, No.10, pp.1218-1230, Oct., 1997. https://doi.org/10.1109/26.634685
  27. S. Zhou and G. B. Giannakis, "Adaptive modulation for multi-antenna transmissions with channel mean feedback," IEEE Trans. Wireless Comm., Vol.3, No.5, pp.1626-1636, Sep., 2004. https://doi.org/10.1109/TWC.2004.833411