標題: A Joint Codebook Design for Beamforming Systems with Transmit Antenna Selection
作者: Chen, Yi-Chi
Tsai, Shang-Ho
Chuang, Gene C. H.
電機工程學系
Department of Electrical and Computer Engineering
關鍵字: Beamforming;limited feedback;Grassmannian;vector quantization;antenna selection;hybrid selection;MRT
公開日期: 2011
摘要: This paper proposes a codebook design that considers transmit antenna selection and beamforming simultaneously. Under the same amount of feedback bits, the proposed codebook can reduce the number of RF units more than half while its performance is still maintained closely (within 0.1 dB loss) to the codebook designs that use all transmit antennas. Since RF units are expensive, the proposed codebook can greatly reduce the hardware implementational cost with slight performance degradation. Moreover, we analyze the proposed codebook and derive a lower bound of symbol error rate (SER). The derived SER lower bound generally matches the simulation results. Simulation results show the proposed codebook with around half active transmit antennas performs comparable to the Lloyd codebook design with full active antennas.
URI: http://hdl.handle.net/11536/14854
ISBN: 978-1-61284-233-2
ISSN: 1550-3607
期刊: 2011 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
Appears in Collections:Conferences Paper