摘要
WiMAX系统是基于OFDM技术的,其对于载波频率偏移十分敏感,而多普勒效应会导致频率弥散,带来载波间干扰ICI(Inter Carrier Interference)。本文首先分析了单载波的频率偏移而带来的在其他载波上的功率泄漏,进而分析在不同的多普勒频移下,载波间干扰对性能的影响,即多普勒频移带来的载波间干扰造成的功率抬升对接收信号的影响。
In this paper, both power leakage caused by frequency shift of one carrier, and also the performance degradation due to total ICI noise dependent on variant Doppler spread, are analyzed and computed.
出处
《电信工程技术与标准化》
2008年第5期25-30,共6页
Telecom Engineering Technics and Standardization
