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http://dx.doi.org/10.7840/kics.2012.37A.12.1133

On The Performance of a Hybrid Mode Beamforming in A Two-Cell System  

Yang, Janghoon (한독미디어대학원대학교 뉴미디어학부)
Chae, Hyukjin (LG전자)
Kim, Dong Ku (연세대학교 전기전자공학부)
Abstract
In this paper, hybrid mode beamforming (HMB) which allows simultaneous transmission of joint beamforming and disjoint beamforming is proposed. HMB is proven to be asymptotically optimal beamforming for sum rate growth. Extensive simulations show that HMB achieves nearly the same performance as joint encoding (JE) in symmetric interference channel. It is also shown that it outperforms JE in a more realistic asymmetric interference channel environment, though it still experiences some performance degradation due to power inefficiency of joint beamforming in asymmetric channel.
Keywords
MIMO; network MIMO; Cell Coordination; Random Beamforming; Multi-Cell;
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Times Cited By KSCI : 1  (Citation Analysis)
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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, no. 11, pp. 334-336, Nov. 2000.   DOI   ScienceOn
2 M. Zhang, A. Macdonald. "Generalized cell planning technique applied for 4x12 frequency-reuse," in Proc. PIMRC, Sep. 2003.
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. Inform. Theory, vol. 55, no. 7, pp. 3206-3219, Jul. 2009.   DOI   ScienceOn
4 O. Somekh, B. M. Zaidel, S. Sahmai, "Sum rate characterization of joint multiple cell-site processing," IEEE Trans. Inform. Theory., vol. 53, no. 12, pp.4473-4497, Dec. 2007.   DOI   ScienceOn
5 H. Zhang, H, Dai, and Q. Zhou, "Base station cooperation for multiuser MIMO: joint transmission and BS selection," in Proc Conf. Inform. Sci. and Systems, Princeton Univ., Mar. 2004.
6 W. Choi, and J. G. Andrews, "The capacity gain from intercell scheduling in multi-antenna systems," IEEE Trans. Wireless Commun., vol. 7, no. 2, pp. 714-725, Feb. 2008.   DOI
7 D. Gesbert, A. Hjorungnes, and H. Skjevling, "Cooperative spatial multiplexing with hybrid channel knowledge," in Proc. IZS, Zurich, Swiss, Feb. 2006.
8 M. Vemula, D. Avidor, J. Ling, and C. Papadias, "Inter-cell coordination, opportunistic beamforming and scheduling," in Proc. ICC, pp. 5319-5324, Istanbul, Turkey, Jun. 2006.
9 J. Yang, H. Chae, Y. Kim, and D. K. Kim, "On the performance of coordinated random beamforming schemes in a two-cell homogeneous interference channel," J. KICS, vol. 36, no. 4, pp. 318-324, Apr. 2011.   DOI
10 M. Sharif, and B. Hassibi, "On the capacity of MIMO broadcast cahnnels with partial side information," IEEE Trans. Inform. Theory, vol. 51, no. 2, pp. 506-522, Feb. 2005.   DOI   ScienceOn