Title :
An Improved Codebook Design for Precoding in MIMO System
Author :
Donglai Hao ; Jianhua Ge
Author_Institution :
Nat. Key Lab. of ISN, Xidian Univ., Xian
Abstract :
Based on the analysis of preceding principle in MIMO-OFDM system, an improved codebook design method is presented in this paper. Combing direct quantization method and Householder matrix, the proposed schemes has a better tradeoff performance than traditional quantization method. Simulation result s also shows a better performance than traditional method especially in 3 and 4 transmit antennas.
Keywords :
MIMO communication; OFDM modulation; matrix algebra; precoding; Householder matrix; MIMO-OFDM system; codebook design; direct quantization method; multiple-input multiple-output systems; orthogonal frequency division multiplexing; precoding; transmit antennas; Antenna feeds; Communication standards; Design methodology; Feedback; MIMO; Matrix decomposition; OFDM; Quantization; Transmitting antennas; Wireless communication;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.127
