摘要
提出了一种基于滤波多音(FMT)系统的自适应比特分配算法,在发射端等功率发射的基础上,通过测量每个子载波的信号失真比(SDR),确定每个子载波的比特分配方式和传输参数.仿真结果表明,该算法提高了FMT系统的抗衰落性能.
An adaptive bit allocation algorithm was proposed in FMT system. Based on equal power transmission at the transmitter, the modulation code and transmission parameters on each per subcanmier were decided by SDR measurement at the receiver. The simulation result shows that the resistance ability to decay of FMT system is improved eflieiendy.
出处
《山东大学学报(理学版)》
CAS
CSCD
北大核心
2006年第6期99-102,共4页
Journal of Shandong University(Natural Science)
基金
国家自然科学基金资助项目(60372029)
关键词
FMT
自适应调制
SDR
FMT
adaptive modulation
signal distortion ratio