Title :
Performance of the CMMB System with MIMO Transmission Scheme
Author :
Feng Hu ; Libiao Jin ; JianZeng Li
Author_Institution :
Sch. of Inf. Eng., Commun. Univ. of China, Beijing, China
Abstract :
Employing MIMO architecture in the next generation of various broadcasting systems offers the potential to obtain higher spectral efficiency as well as diversity gain. This Letter presents the experimental step of a project aimed at the implementation of a 2×2 MIMO-OFDM architecture to improve reliability and capacity, respectively, for wireless communications. The design of SFBC are proposed for transmit antennas that can obtain full diversity. The work is based on measurements of the MIMO channel in a portable reception environment. Therefore the description of signal processing is detailed including the pilot insertion, design of code, OFDM modulation/demodulation, channel modeling, and channel estimation. Thus we adapt a simply adjusted CMMB system as one application of MIMO system and provide its computer simulation results comparing the performance of conventional CMMB to MIMO CMMB.
Keywords :
MIMO communication; OFDM modulation; channel estimation; diversity reception; signal processing; transmitting antennas; wireless channels; CMMB system; MIMO architecture; MIMO channel; MIMO system; MIMO transmission scheme; MIMO-OFDM architecture; OFDM modulation/demodulation; broadcasting systems; channel estimation; channel modeling; diversity gain; full diversity; pilot insertion; portable reception environment; signal processing; spectral efficiency; transmit antennas; wireless communications; Channel estimation; Diversity methods; MIMO; Multimedia communication; OFDM; Receivers; Transmitting antennas; CMMB; MIMO; OFDM; channel estimation; signal processing for transmission;
Conference_Titel :
Instrumentation, Measurement, Computer, Communication and Control (IMCCC), 2012 Second International Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4673-5034-1
DOI :
10.1109/IMCCC.2012.246
