Transmission Scheme for 2D Antenna Array MIMO Systems with Limited Feedback

• Published in: Wireless personal communications Vol. 75; no. 1; pp. 759 - 774
• Main Authors: Peng, Yuefeng, Yang, Wei, Zhu, Yuan, Chen, Xiaogang
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01.03.2014; Springer
• Subjects: Access methods and protocols, osi model; Antenna arrays; Applied sciences; Channels; Coding, codes; Communications Engineering; Computer Communication Networks; Engineering; Equipments and installations; Exact sciences and technology; Feedback; Horizontal; Information, signal and communications theory; Mathematical analysis; Mobile radiocommunication systems; Networks; Radiocommunications; Signal and communications theory; Signal,Image and Speech Processing; Telecommunications; Telecommunications and information theory; Teleprocessing networks. Isdn; Three dimensional; Two dimensional; Vectors (mathematics); CSI; Interpolation; SE; 3D MIMO; Feedback; MIMO system; Base station; Feedback regulation; Knowledge base; Spatial multiplexing; Beam forming; Codebook; Precoding; Channel estimation; Imperfect information; Richness; Wireless network; Plane antenna; Incomplete information; Antenna array
• ISSN: 0929-6212; 1572-834X
• DOI: 10.1007/s11277-013-1390-7

Three-dimensional (3D) multiple-input multiple-output (MIMO) systems exploit spatial richness and provide another degree of freedom to transmit signals and eliminate spatial interference. Currently, however, there is no 3D codebook for two-dimensional (2D) antenna array MIMO systems with limited feedback. In this paper, based on the existing 2D codebook, we present a limited feedback and transmission scheme for 2D antenna array MIMO systems. In this scheme, the mobile station (MS) has imperfect channel knowledge, and the base station (BS) only acquires partial information relating the channel instantiation. MS must feed back two channel state information (CSI) instances, i.e., the horizontal and vertical CSIs. After receiving the two CSI instances, the BS interpolates a new vertical precoding vector using the vertical CSI. Then, the BS re-constructs a 3D beamforming vector using horizontal and vertical precoding vectors and compensates the reported horizontal channel quality indicator. System level simulation is employed, and the simulation results show that the proposed method improves the system spectral efficiency and the cell-edge SE significantly.