宽带MISO/OFDM传输系统的性能分析  

Performance Analysis of a Broadband MISO/OFDM Transmission System

作　　者：邱永红[1] 

机构地区：[1]南京总参第63研究所,南京210007

出　　处：《电子科技大学学报》2006年第5期748-751,共4页Journal of University of Electronic Science and Technology of China

基　　金：通信抗干扰技术国家级重点实验室基金资助项目(514340103JB5001)

摘　　要：提出了一种自适应比特和功率分配的宽带MISO/OFDM传输系统,建立了宽带MISO/OFDM传输系统的模型,并对该系统的最大子载波信噪比性能进行了分析。仿真结果表明在多径衰落信道下,与没有采用自适应比特和功率分配的传统发射分集OFDM传输系统相比,该系统的误比特性能得到明显的提高。In this paper, we propose a broadband MISO/OFDM transmission system with adaptive bit and power allocation. The model of proposed system is established. The performance of maximal SNR on each subcarrier of proposed system is analyzed. The simulation results show that the proposed system can achieve better performance compared with that of the conventional adaptive transmit diversity based OFDM systems without adaptive bit and power allocation over multipath fading channels.

关 键 词：多输入单输出/正交频分复用 传输系统 自适应比特分配 自适应功率分配 

分 类 号：TN911[电子电信—通信与信息系统]