Study on the MIMO OFDM Systems with Adaptive Bit and Power Allocation
Li Hai-tao①; Zhang Jing②; Lu Jian-hua①
①Department of Electronic Eng.,Tsinghua University Beijing 100084 China;②Academy of Electronics and Information Technology China Electronics Technology Group Corportion Beijing 100041
Abstract：The multiple antenna Orthogonal Frequency Division Multiplexing(OFDM) system model is analyzed in this paper. Considering that Multiple-Input Multiple-Output(MIMO) channel can be separated into parallel subchannels by means of the singular value decomposition, and deep faded subcarriers may degrade the OFDM system perfor mance, the adaptive bit and power allocation for MIMO OFDM system are proposed. The analysis and simulation results show that the proposed adaptive MIMO OFDM improves bit error rate performance and spectral efficiency of the system.
黎海涛; 张靖; 陆建华. 自适应比特功率分配的MIMO OFDM系统性能[J]. 电子与信息学报, 2004, 26(3): 416-420 .
Li Hai-tao①; Zhang Jing②; Lu Jian-hua①. Study on the MIMO OFDM Systems with Adaptive Bit and Power Allocation. , 2004, 26(3): 416-420 .
2004, Vol. 26 
