%0 Journal Article
%T A New Scheme for Adaptive Slot Structure in Mobile Communication Systems<br>移动通信中一种自适应时隙结构的新方法
%A Hua Jing-yu
%A Ma Zhang-yong
%A Gao Xi-qi
%A You Xiao-hu
%A <br>华惊宇
%A 马章勇
%A 高西奇
%A 尤肖虎
%J 电子与信息学报
%D 2005
%I 
%X A Single Carrier/Frequency Domain Equalization (SC/FDE) system with time multiplexed pilot channel is designed. In this system, the Doppler-shift of the time-varying multi-path channel is estimated by calculating the Level Crossing Rate (LCR) of the signal envelope with the channel coefficient estimation on the effective fingers. Based on the Doppler-shift estimation and its relationship with pilot sampling rate, the slot structure and the pilot density are adjusted adaptively, which ensure high system capacity and good receiving performance in a wide range of mobile velocities.
%K Adaptive slot structure
%K Level Crossing Rate(LCR)
%K Doppler-shift
%K Pilot density<br>自适应时隙结构
%K 电平通过率
%K 多普勒频移
%K 导频密度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=29535622569F4169&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=CA4FD0336C81A37A&sid=869807E2D7BED9EC&eid=BB0EA31DB1B01173&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=9