Title :
Semi-blind Doppler spread tracking and channel equalization for green wireless MIMO systems
Author :
Teng Ma ; Xu Zhu ; Yufei Jiang ; Yi Huang ; Eng Gee Lim
Author_Institution :
Dept. of Electr. Eng. & Electron., Univ. of Liverpool, Liverpool, UK
Abstract :
An energy-efficient semi-blind receiver structure for green wireless multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is proposed. A reference data sequences designed offline are superimposed in source signal sequences to enable Doppler spread estimation and ambiguity elimination caused by equalization based on the independent component analysis (ICA), without consuming extra power and spectral resources. The bit error rate (BER) performance achieved approaches the perfect condition with ideal channel state information (CSI).
Keywords :
MIMO communication; OFDM modulation; error statistics; independent component analysis; BER; CSI; ICA; bit error rate performance; channel equalization; elimination; energy-efficient semi-blind receiver structure; green wireless MIMO systems; green wireless multiple-input multiple-output orthogonal frequency division multiplexing system; ideal channel state information; independent component analysis; reference data sequences; semi-blind Doppler spread tracking; source signal sequences; Bit error rate; Doppler effect; Estimation; MIMO; OFDM; Receiving antennas; Wireless communication;
Conference_Titel :
Consumer Electronics - Taiwan (ICCE-TW), 2015 IEEE International Conference on
Conference_Location :
Taipei
DOI :
10.1109/ICCE-TW.2015.7217021
