Title :
MIMO-DAB/DMB Based on Differential Unitary Space-Frequency Modulation
Author :
Wu, Yanbo ; An, Jianping ; Lu, Yao
Author_Institution :
Beijing Inst. of Technol., Beijing
Abstract :
A novel multiple antenna DAB/DMB scheme based on differential unitary space-frequency modulation (DUSFM) is proposed in this paper, in which the receiver can demodulate without channel status information in a maximum-likelihood method. We proved theoretically that in case an ideal interleaving, the DUSFM-DAB system can obtain full space-time- frequency diversity, up to the product of the convolutional code´s free distance and the transmitter antenna amount. In Monte Carlo simulation, with a time-frequency selective fading 3times1 MIMO channel, to achieve a 0.0001 bit-error-rate, the proposed scheme has a 6~7dB SNR benefit compared with CDD-DAB (Cyclic Delay Diversity DAB).
Keywords :
MIMO communication; Monte Carlo methods; antenna arrays; digital audio broadcasting; digital video broadcasting; error statistics; frequency modulation; maximum likelihood estimation; transmitting antennas; wireless channels; MIMO channel; MIMO-DAB/DMB; Monte Carlo simulation; bit-error-rate; convolutional code´s; differential unitary space-frequency modulation; full space-time- frequency diversity; maximum-likelihood method; multiple antenna; time-frequency selective fading channel; transmitter antenna; Antenna theory; Convolutional codes; Digital multimedia broadcasting; Fading; Frequency diversity; Interleaved codes; Receiving antennas; Time frequency analysis; Transmitters; Transmitting antennas; DAB; MIMO-OFDM; differential modulation; diversity; unitary space-time modulation;
Conference_Titel :
Communications and Networking in China, 2007. CHINACOM '07. Second International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1009-5
Electronic_ISBN :
978-1-4244-1009-5
DOI :
10.1109/CHINACOM.2007.4469580
