摘要
自适应调制是移动宽带系统的关键技术之一,它通过研究无线电信道的衰落程度、信道流量等参数动态地改变调制方式,从而有效地改善误比特率性能和信息传输速率。本文设计了针对时分复用系统(TDMA)采用时分双工(TDD)的工作方式的帧格式,并利用CPLD(复杂可编程逻辑器件)技术来实现。
Adaptive modulation is one of the crucial techniques for the mobile broadband systems. Modulation mode can be adaptively adjusted by estimating such wireless parameters as fading degree, channel traffic, etc. In this way, the performance of bit error rate can be effectively improved and the information transmission bit rate can be increased. In this paper, a frame format in TDMA-TDD (Time Division Multiple Address-Time Division Dual ) system is designed and implemented by CPLD(Complex Programmable Logic Device).
出处
《浙江工业大学学报》
CAS
2003年第5期482-487,共6页
Journal of Zhejiang University of Technology
基金
浙江省自然科学基金资助项目(601083)
