Abstract：In this paper, an algorithm of LDPC codes and adaptive bit power allocation in MIMO-OFDM system is proposed. The algorithms of LDPC codes with two different code rate and adaptive OFDM/MIMO-OFDM are simulated, at the same time, the adaptive algorithms of OFDM/MIMO-OFDM without coding are simulated. The simulation results show that, with the same transmission bandwidth and the same transmission entropy, the performance of adaptive OFDM system with lower rate LDPC codes is better than that without coding. Furthermore, the performance of adaptive OFDM system with high rate LDPC codes is better than that of adaptive OFDM, but worse than that of adaptive MIMO-OFDM.
霍永青; 彭启琮 . MIMO-OFDM系统中LDPC编码和自适应比特功率分配算法研究[J]. 电子与信息学报, 2008, 30(2): 404-407 .
Huo Yong-qing;Peng Qi-cong. Study of LDPC Coding and Adaptive Bit Power Allocation in MIMO-OFDM System. , 2008, 30(2): 404-407 .
2008, Vol. 30 
