摘要
发射分集技术是WCDMA中的关键技术之一。就此对WCDMA系统中的开环和闭环两类发射分集技术给出了性能分析及仿真结果,揭示了这两类发射分集技术之间的关系,并且通过仿真比较了两种发射分集方法在存在反馈延迟和反馈比特量化误差条件下的误比特率性能。
Transmit diversity is one of the basic technologies in MIMO communication systems. In the updated WCDMA proposal, the transmit diversity schemes can be classified as open loop mode and closed loop mode. This paper presents the performances of these two schemes based on WCDMA system. Open loop transmit diversity and closed loop transmit diversity are analyzed in Rayleigh fading channel. By simulation, the BER（probabilities of bit error rate）are compared with feedback delay and the number of feedback bits.
出处
《山西电子技术》
2006年第4期52-54,共3页
Shanxi Electronic Technology
关键词
发射分集
开环
闭环
反馈延迟
transmit diversity
closed loop
open loop
feedback delay
