摘要
提出单载波与多载波技术体系的融合将会成为未来通信系统空中接口技术发展的重要趋势,指出对既有系统与技术的兼容性和扩展性是混合单、多载波系统所需重点关注问题。结合扩频、均衡、部分快速傅立叶变换(FFT)解调等技术,论述了干扰平均化思想在混合载波系统抗衰落、抗干扰中的重要作用,并展望了加权类分数傅立叶变换(WFRFT)通信系统相关技术的未来研究重点。
This paper indicates that the convergence of single carrier and multicarrier technological system will be the general trend for the air interface of future communications systems, and the compatibility and expansibility should be the crucially focused features. The idea of averaging interference for the hybrid carrier system over fading and interference channels are discussed along with the combinations of hybrid carrier system and other techniques such as spectrum spreading, equalization and partial fast Fourier transform(FFT) demodulation. Future work for the research of weighted-type fractional Fourier transform(WFRFT)communications system and relative technologies are also addressed.
出处
《中兴通讯技术》
2017年第3期38-44,共7页
ZTE Technology Journal
基金
国家重点基础研究发展("973")计划(2007CB310606
2013CB329003)
自然科学基金(61671179)
关键词
WFRFT
混合载波体制
时频双弥散信道
低截获概率
WFRFT
hybrid carrier scheme
time-frequency doubly dispersive channel
low probability of interception