Title :
DFT Structured Codebook Design with Finite Alphabet for High Speed Wireless Communication
Author :
Xia, Pengfei ; Yong, Su-Khiong ; Niu, Huaning ; Oh, Jisung ; Ngo, Chiu
Author_Institution :
Samsung Electron., San Jose, CA
Abstract :
A low-complexity numerical codebook construction method is presented in this paper for limited feedback transmit beamforming systems. The so-constructed codebook takes a DFT matrix structure and achieves equal amplitude beamforming all the time. The codebooks are designed such that the selected row indices mimic the behavior of a difference set which, when exists, is able to achieve codebook optimality. Finite alphabet constraint on the codebook is further studied, where scalar quantization is further applied.
Keywords :
array signal processing; channel coding; discrete Fourier transforms; fading channels; matrix algebra; quantisation (signal); radiocommunication; DFT matrix; DFT structured codebook design; discrete Fourier transforms; fading channel coding; feedback transmit beamforming systems; finite alphabet; high speed wireless communication; scalar quantization; Array signal processing; Discrete Fourier transforms; Feedback; MIMO; Peak to average power ratio; Quantization; Signal design; Signal to noise ratio; Transmitters; Wireless communication;
Conference_Titel :
Consumer Communications and Networking Conference, 2009. CCNC 2009. 6th IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
978-1-4244-2308-8
Electronic_ISBN :
978-1-4244-2309-5
DOI :
10.1109/CCNC.2009.4784839
