Title :
Approximate minimum SER precoding for spatial multiplexing over Ricean channels
Author :
Wang, Wei ; Shen, Gang ; Jin, Shan ; Wang, Dongyao ; Chen, Jiming
Author_Institution :
Res. & Innovation Center, Alcatel Lucent Shanghai Bell Co., Ltd., Shanghai, China
Abstract :
The approximate minimum average symbol error rate (SER) precoder is designed for spatial multiplexing (SM) system in Ricean channels. Based on long-term channel state information (CSI), a closed-form solution that combines eigen-beamforming (E-BF) and power allocation is presented for correlated Ricean channel. Moreover, a simple precoder only based on K-factor and line-of-sight (LOS) departure angle is derived for independent Ricean channel, which needs less feedback overhead and lower computational complexity. The simulation results confirm the effectiveness of these precoders.
Keywords :
Rician channels; channel coding; computational complexity; eigenvalues and eigenfunctions; error statistics; space division multiplexing; CSI; E-BF; K-factor departure angle; LOS departure angle; approximate minimum SER precoding; closed-form solution; computational complexity; correlated Ricean channel; eigen-beamforming; line-of-sight departure angle; long-term channel state information; power allocation; spatial multiplexing; symbol error rate; AWGN; Channel state information; Computational complexity; Computational modeling; Error analysis; Error probability; Feedback; MIMO; Samarium; Transmitters; MIMO; Ricean; power allocation; precoding;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
978-1-4244-5122-7
Electronic_ISBN :
978-1-4244-5123-4
DOI :
10.1109/PIMRC.2009.5450205
