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

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

DOI QR Code

3-Cell 하향링크 MIMO 간섭 채널에서의 간섭 공간 재활용 및 QoS Constraint에 따른 그 적용 방안

Interference Space Reuse and the Adoption Strategy through QoS Constraints in Three-Cell Downlink MIMO Interference Channels

  • 윤장호 (KAIST 전기 및 전자공학과 이동통신 연구실) ;
  • 이황수 (KAIST 전기 및 전자공학과 이동통신 연구실)
  • 투고 : 2012.09.24
  • 심사 : 2012.12.04
  • 발행 : 2012.12.28
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 3-Cell 간섭 환경에서의 하향링크 MU-MIMO를 위한 간섭 공간 재활용 기술 (ISR)과 그 적용방안을 제시한다. 멀티 셀 간섭환경의 셀 경계 사용자들의 안정적인 통신을 위해서는 효율적인 간섭 관리가 필요하다. 하지만 셀 중심부의 사용자들의 경우 간섭의 영향을 적게 받으며 적은 전송 전력으로도 안정적인 통신이 가능하다. 본 논문에서는 셀 경계 사용자의 간섭 공간을 재사용하여 셀 중심부 사용자에게 서비스를 제공하는 ISR 기반 전송 신호 설계 방법을 제시한다. ISR 방식은 간섭정렬(IA)과 결합된 부분적 주파수 재활용 (fractional frequency reuse : FFR) 방식과 비교하여 볼 때 셀 중심 사용자와 셀 경계 사용자에 대한 scheduling에 따라 전체 네트워크 데이터 전송용량 측면에서 20%의 성능 향상을 보이며 또한 셀 중심 사용자의 서비스 품질 (QoS) 요구조건이 고정되어 있는 경우 ISR 방식에 의해 기지국에서의 전송 신호 벡터를 설계함으로서 셀 경계 사용자의 데이터 전송 용량을 증가시킬 수 있다.

We propose an interference space reuse (ISR) algorithm for the MU-MIMO design in 3-cell downlink interference channels. Also, we provide a strategy for the adoption of the ISR scheme in the cellular network. In the multicell interference channels, the cell edge users may undergo severe interferences and their signals should be protected from the interferers for reliable transmissions. However, the intra cell users do not only experience small interferences but also they require small transmission power for stable communication. We provide a vector design algorithm based on ISR, where intra cell users are served through reusing the cell edge users' interference space. The performance enhancement reaches 20% compared to the fractional frequency reuse (FFR) scheme combined with IA through the scheduling between the cell edge users and the intra cell users. Also, it can be used to enhance the cell edge throughput when the quality of service (QoS) requirements of the intra cell users are fixed.

키워드

과제정보

연구 과제 주관 기관 : 한국연구재단

참고문헌

  1. J. Zhang, R. Chen, and J. G. Andrews, A. Ghosh, and R. W. Heath, "Networked MIMO with clustered linear precoding," IEEE Trans. Wireless Comm. vol. 8, no. 4, pp. 1910-1921, Apr. 2009. https://doi.org/10.1109/TWC.2009.080180
  2. Y. Cheng, V. K. N. Lau, and Y. Long, "A scalable limited feedback design for network MIMO using per-cell product codebook," IEEE Trans. Wireless Commun. vol. 8, no. 10, pp. 3093-3099, Oct. 2010.
  3. Y. Cui, Q. Huang, and V. K. N. Lau, "Queue-aware dynamic clustering and power allocation for network MIMO systems via distributed stochastic learning," IEEE Trans. Signal Proc., vol. 59, no. 3, pp. 1229-1238, Mar. 2011. https://doi.org/10.1109/TSP.2010.2097253
  4. H. Huang, M. Trivellato, A. Hottinen, M. Shafi, P. J. Smith, and R. Valenzuela, "Increasing downlink cellular throughput with limited network MIMO coordination," IEEE Trans. Wireless Comm. vol. 8, no. 6, pp. 2983-2989, Jun. 2009. https://doi.org/10.1109/TWC.2009.080179
  5. V. Cadambe and S. Jafar, "Interference alignment and degrees of freedom of the K-user interference channel," IEEE Trans. Infom. Theory, vol. 54, no. 8, pp. 3425-3441, Aug. 2008. https://doi.org/10.1109/TIT.2008.926344
  6. T. Gou, and S. Jafar, "Degrees of freedom of the K user MxN MIMO interference channel," IEEE Trans. Inform. Theory, vol. 56, no. 12, pp. 6040-6057, Dec. 2010. https://doi.org/10.1109/TIT.2010.2080830
  7. C. Yetis, T. Gou, S. Jafar, and A. Kayran, "Feasibility conditions for interference alignment," in Proc. IEEE GLOBECOM, pp. 1-6, Honolulu, USA, Dec. 2009.
  8. Y. Ma, J. Li, and R. Chen, "On the achievability of interference alignment for three-cell constant cellular interfering networks," IEEE Commun. Letter, vol. 16, no. 9, pp. 1384-1387, Sep. 2012. https://doi.org/10.1109/LCOMM.2012.073112.120437
  9. B. Jung, and W. Shin, "Opportunistic interference alignment for interference-limited cellular TDD uplink," IEEE Comm. Lett., vol. 15, no. 2, pp. 148-150, Feb. 2011. https://doi.org/10.1109/LCOMM.2011.121310.101439
  10. B. Zhuang, R. A. Berry, and M. L. Honig, "Interference alignment in MIMO cellular networks," in Proc. IEEE ICASSP 2011, pp. 3356-3359, Prague, Czech, May 2011.
  11. Y. Ma, J. Li, Q. Liu, and R. Chen, "Group based interference alignment," IEEE Comm. Lett., vol. 15, no. 4, pp. 383-385, Apr. 2011. https://doi.org/10.1109/LCOMM.2011.020111.102415
  12. C. Suh, M. Ho, and D. N. C. Tse, "Downlink interference alignment," IEEE Trans. Comm. vol. 59, no. 9, pp. 2616-2626, Sep. 2011. https://doi.org/10.1109/TCOMM.2011.070511.100313
  13. H. W Park, S. H Park, H. J Sung, and I. K Lee, "Reduced complexity scheduling method with MIMO interference alignment for mutually interfering broadcast channels," J. KICS, vol. 37A, no. 8, pp. 601-611, Aug. 2012. https://doi.org/10.7840/kics.2012.37A.8.601
  14. R. Zhang, and S. Cui, "Cooperative interference management with MISO beamforming," IEEE Trans. Signal Proc., vol. 58, no. 10, pp. 5450-5458, Oct. 2010. https://doi.org/10.1109/TSP.2010.2056685
  15. D. Nguyen, and T. Le-Ngoc, "Multiuser downlink beamforming in multicell wireless system: a game theoretical approach," IEEE Trans. Signal Proc., vol. 58, no. 7, pp. 3326-3338, Jul. 2011.
  16. A. Tolli, H. Pennanen, and P. Komulainen, "Decentralized minimum power multi-cell beamforming with limited backhaul signaling," IEEE Trans. Wireless Commun. vol. 10, no. 2, pp. 570-580, Feb. 2011. https://doi.org/10.1109/TWC.2011.120810.100363
  17. R. Bhagavatula, and R. W. Heath, "Adaptive limited feedback for sumrate maximizing beamforming in cooperative multicell systems," IEEE Trans. Signal Proc., vol. 59, no. 2, pp. 800-811, Feb, 2011. https://doi.org/10.1109/TSP.2010.2090346
  18. E. Bjornson, R. Zakhour, D. Gesbert, and B. Ottersten, "Cooperative multicell precoding: rate region characterization and distributed strategies with instantaneous and statistical CSI," IEEE Trans. Signal Proc., vol. 58, no. 8, Aug. 2010.
  19. J. Kang, H. Je, C. Park, and K. Lee, "Transmit antenna subset selection for downlink MIMO systems in multicell environments," IEEE Trans. Wireless Commun., vol. 9, no. 7, pp. 2113-2118, Jul. 2010. https://doi.org/10.1109/TWC.2010.07.090442
  20. R. Zakhour, and D. Gesbert, "Distributed multicell-MISO precoding using the layered virtual SINR framework," IEEE Trans. Wireless Commun., vol. 9, no. 8, pp. 2444-2448, Aug. 2010. https://doi.org/10.1109/TWC.2010.061710.091648
  21. S. Chu, and X. Wang, "Opportunistic and cooperative spatial multiplexing in MIMO ad hoc networks," IEEE/ACM Trans. Networking, vol. 18, no. 5, pp. 1610-1623, Oct. 2010. https://doi.org/10.1109/TNET.2010.2049027
  22. W. W. L. Ho, T. Q. S. Quek, S. Sun, R. W. Heath, "Decentralized precoding for multicell MIMO downlink," IEEE Trans. Wireless Commun. vol. 10, no. 6, Jun. 2011.
  23. B. Ng, J. S. Evans, S. V. Hanly, and D. Aktas, "Distributed downlink beamforming with cooperative base stations," IEEE Trans. Inform. Theory, vol. 54, no. 12, pp. 5491-5499, Dec. 2008. https://doi.org/10.1109/TIT.2008.2006426
  24. C. Chae, S. Kim, and R. W. Heath, "Network coordinated beamforming for cell boundary users: linear and nonlinear approaches," IEEE J. Sel. Signal Proc., vol. 3, no. 6, pp. 1094-1105, Dec. 2009. https://doi.org/10.1109/JSTSP.2009.2035857
  25. J. Y. Lee, S. J. Bae, Y. M. Kwon, and M. Y. Chung, "Imperfect digital fibre optic link based cooperative distributed antennas with fractional frequency reuse in multicell multiuser networs," IEEE Commun. Lett., vol. 15, no. 4, pp. 425-427, Apr. 2011. https://doi.org/10.1109/LCOMM.2011.030311.101871
  26. R. Mahapatra and E. C. Strinati, "Radio resource management in femtocell downlink exploiting location information," in Proc. IEEE ANTS 2011, pp. 1-6, Bangalore, India, Dec. 2011.
  27. C. Chang, "An interference-avoidance code assignment strategy for the hierarchical two-dimensional-spread MC-DS-CDMA system: a prototype of cognitive radio femtocell system," IEEE Trans. Veh. Technol. vol. 61, no. 1, pp. 166-184, Jan. 2012. https://doi.org/10.1109/TVT.2011.2173808
  28. F. Tariq, L. S. Dooley, and A. S. Poulton, "An interference-aware clustering paradigm for resource management in cognitive femtocell networks," Arxiv preprint arXiv:1204.4459.
  29. A. Dotzler, W. Utschick, and G. Dietl, "Fractional reuse partitioning for MIMO networks," in Proc. IEEE GLOBECOM 2010, pp. 1-5, Miami, USA, Dec. 2010.
  30. C. R. Stevenson, G. Chouinard, Z. Lei, W. Hu, S. J. Shellhammer, and W. Caldwell, "IEEE 802.22: the first cognitive radio wireless regional area network standard," IEEE Comm. Mag., vol. 47, no. 1, pp. 130-138, Jan. 2009. https://doi.org/10.1109/MCOM.2009.4752688
  31. M. Nguyen, and H. S. Lee, "Effective Scheduling in Infrastructure-Based Cognitive Radio Networks," IEEE Trans. Mobile Comput., vol. 10, no. 6, pp. 853-867, June, 2011. https://doi.org/10.1109/TMC.2010.224
  32. IEEE 802.16m-08/004r5, IEEE 802.16m Evaluation Methodology Document. 2009.