Browse > Article

Spatial Multiplexing System based on Random Unitary Beamforming for MU-MIMO Broadcast Channel  

Park, Seong-Ho (고려대학교 통신시스템기술협동과정 통신시스템 연구실)
Park, Ki-Hong (고려대학교 전자전기공학과)
Lee, Jin-Hee (고려대학교 전자전기공학과)
Ko, Young-Chai (고려대학교 전자전기공학과)
Kim, Sung-Jin (삼성종합기술원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.2A, 2010 , pp. 105-111 More about this Journal
Abstract
Random unitary beamforming (RUB) is a very low complexity and practical transmission scheme for multiuser MIMO broadcast channel. In this paper, we propose the scheme that obtains the spatial multiplexing gain on the extension of the conventional RUB, that is, the receiver with two antennas is compared to that with one antenna in a conventional RUB, which results in the increased capacity. So, we propose the new codebook and the minimum mean square error successive interference cancellation (MMSE-SIC) receiver filter. We show the simulation result that the sum-rate of proposed system is increased.
Keywords
random unitary beamforming (RUB); MIMO broadcast channel; minimum mean square error; successive interference cancellation (MMSE-SIC); spatial multiplexing;
Citations & Related Records
연도 인용수 순위
  • Reference
1 E. villier, "Performance analysis of optimum combining with multiple interferers in flat Rayleigh fading", IEEE Trans. Commun., Vol. 47, No. 10, pp.1503-1510, Oct. 1999.   DOI   ScienceOn
2 J. H. Winters, "Optimum combining in digital mobile radio with cochannel interference", IEEE Trans. Veh. Tech., Vol.33, No.3, pp. 144-155, Aug. 1984.   DOI
3 M. Costa, "Writing on dirty paper", IEEE Trans .Inform Theory, Vol.29, No.5, pp.439-441, May. 1983.   DOI
4 P. Lu, H. C. Yang and Y. C. Ko, "Performance enhancement of random unitary beamforming based multiuser MIMO systems with optimum combining", Proc. of IEEE Global Commun. Conf. (GLOBECOM'2008) New Orleans, LA, USA, Nov. 2008.
5 T. Yoo and A. Goldsmith, "On the optimality of multi-antenna broadcast scheduling using zero-forcing beamforming", IEEE J. Select. Areas Commun., Vol.24, No.3, pp.528-541, Mar. 2006.
6 M. Sharif, and B. Hassibi, "On the capacity of MlMO broadcast channels with partial side information", IEEE Trans. Inform. Theory, Vol. IT-51, No.2, pp.506-522, Feb. 2005.