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

The Korean Institute of Commucations and Information Sciences (한국통신학회)
권호 표지
DOI QR코드

DOI QR Code

On The performance of Coordinated Random Beamforming Schemes in A Two-Cell Symmetric Interference Channel

두 셀 대칭적 간섭 채널환경에서 협력적 불규칙 빔형성 방법의 성능에 대한 연구

  • 양장훈 (한독미디어 대학원 대학교 뉴미디어학부) ;
  • 채혁진 (연세대학교 전기전자공학과) ;
  • 김요한 (삼성전자) ;
  • 김동구 (연세대학교 전기전자공학과)
  • Received : 2010.10.07
  • Accepted : 2011.03.28
  • Published : 2011.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this paper, three coordinated random beamforming (CRBF) schemes are analyzed in a two-cell symmetric interference channel. A simple partial coordination of RBF with base station selection (BSS) is shown to achieve the same average sum rate performance of CRBF with joint encoding (JE). To improve the sum rate performance further, we also propose a transmission mode selection (TMS) between the BSS and JE which is shown to have additional sum rate gain for the large number of users. Simulation results verify the eectiveness of the proposed CRBF schemes and accuracy of the proposed analysis.

본 논문에서는 두 셀 대칭적 간섭 채널 환경에서 세 가지 방식의 협력적 불규칙 빔형성 방법을 분석한다. 먼저, 기지국 선택을 통한 간단한 형태의 부분 협력 빔형성 방법은 연계적 인코딩을 적용한 불규칙 빔형성 방법과 동일한 평균 합 전송률을 갖는다는 것을 증명한다. 또한, 전송 모드 선택 방법을 적용하는 경우에 시스템의 사용자가 많을 때에 부가적인 합 전송율의 이득이 발생하는 것을 증명하였다. 모의 실험 결과를 통해서 성능에 대한 분석이 유효함과 정확성을 확인하였다.

Keywords

Acknowledgement

Supported by : 한국연구재단

References

  1. S. Catreux, P. F. Driessen, and L. J. Greenstein, "Simulation results for an interference-limited multiple-input multiple- output cellular system," IEEE Commun. Lett., Vol.4, pp.334-336, Nov. 2000. https://doi.org/10.1109/4234.892193
  2. G. J. Foschini, K. Karakayali, and R. A. Valenzuela, "Coordinating Multiple Antenna Cellular Networks to Achieve Enormous Spectral Efficiency," IEE Proc-Commun., Vol.153, pp.548-555, Aug. 2006. https://doi.org/10.1049/ip-com:20050423
  3. O. Somekh, O. Simeone, Y. Bar-Ness, A. M. Haimovich,and S. Shamai, "Cooperative Multicell Zero-Forcing Beamforming in Cellular Downlink Channels," IEEE Trans. Inf. Theory, Vol.55, pp.3206-3219, Jul. 2009. https://doi.org/10.1109/TIT.2009.2021371
  4. K. Huang, J. G. Andrews, and R. W. Heath, "Performance of Orthogonal Beamforming for SDMA With Limited Feedback," IEEE Trans on Veh. Tech., Vol.58, pp.152-164, Jan. 2009. https://doi.org/10.1109/TVT.2008.925003
  5. M. Sharif, and B. Hassibi, "On the capacity of MIMO broadcast cahnnels with partial side information," IEEE Trans. Inf. Theory, Vol.51, pp.506-522, Feb. 2005. https://doi.org/10.1109/TIT.2004.840897
  6. J. Yang, Y. Kim, H. Chae, and D. K. Kim, "A Closed Form Approximation of the Sum Rate of Random Beamforming with Multiple Codebooks and Its Application to Control of the Number of Codebooks," IEEE Commun. Lett., Vol.12, pp.672-674, Sept. 2008. https://doi.org/10.1109/LCOMM.2008.080820
  7. S. Venkatesan, A. Lozano, and R. Valenzuela, "Network MIMO: Overcoming Intercell Interference in Indoor Wireless Systems," in Proc. of ACSSC 2007, pp.83-87, Pacific Grove, USA, Nov. 2007.
  8. Y. Kim, J. Yang, and D. K. Kim, "A Near-Exact Sum Rate Approximation Of Random Beamforming And Its Application To Mode Optimization," IEICE Trans. Commun. Vol.E92-B, pp.1049-1052, Mar. 2008.
  9. E. Castillo, Extreme Value Theory in Engineering, London, U.K.: Academic Press, 1988.
  10. Gascuel, and G. Caraux, "Bounds on expectations of order statistics via extremal dependences," Statistics and Probability Letters, Vol.15, pp.143-148, Sept. 1992. https://doi.org/10.1016/0167-7152(92)90127-Q