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

fYear

2007

fDate

22-24 Aug. 2007

Firstpage

1102

Lastpage

1105

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CHINACOM.2007.4469578

Filename

4469578