Title :
An Adaptive LDPC-coded MIMO-OFDM System with Partial Channel State Information
Author :
Huang, Binggang ; Hui, Yi ; Zhang, Wenqiang ; Zhou, Zhijie
Author_Institution :
PLA Univ. of Sci. & Technol., Nanjing
Abstract :
An adaptive transmission scheme of MIMO-OFDM system based on MQAM and LDPC code is proposed. An transmit optimization algorithm to obtain an bit and power allocation is used which selects the MCS requiring only the mean and variance assuming the received LLR distribution as Gaussian. Simulation results show the performance of the proposed scheme is up to about 3dB better than other transmission schemes at the expense of a few bits in the feedback information.
Keywords :
Gaussian distribution; MIMO communication; OFDM modulation; adaptive codes; channel coding; parity check codes; quadrature amplitude modulation; wireless channels; Gaussian distribution; LLR distribution; MQAM code; adaptive LDPC-coded MIMO-OFDM system; adaptive transmission scheme; partial channel state information; power allocation; transmit optimization algorithm; wireless channel; Adaptive systems; Channel state information; Decoding; Error correction; Modulation coding; OFDM; Parity check codes; Power system modeling; Transmitters; Wireless communication; CSI; LDPC; MCS; MRC; SVD;
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.2007.4469578
