Love D J, Heath R W, Lau V K N, et al. An overview of limited feedback in wireless communication systems[J]. IEEE Journal on Selected Areas in Commun, 2008, 26(8): 1341-1365. [2] Chae C B, Mazzarese D, Jindal N, et al. Coordinated beamforming with limited feedback in the MIMO broadcast channel[J]. IEEE Journal on Selected Areas in Commun, 2008, 26(8): 1505-1515. [3] Cheng Tiezheng, Yuan Chaowei. Novel limited feedback scheme under the MIMO broadcast system[J]. Journal of China University of Posts and Telecommunications, 2009, 16(6): 11-16. [4] Horn R A, Johnson C R. Matrix analysis[M]. 4th ed. New York: Cambridge University Press, 1990. [5] Sadek M, Tarighat A, Sayed A H. A leakage-based precoding scheme for downlink multi-user MIMO channels[J]. IEEE Trans on Wireless Commun, 2007, 6(5): 1711-1721.
