摘要
CDMA系统中,功率控制对于降低系统干扰,提高系统容量和性能具有重要作用。介绍了一种基于信道增益向量的功率控制方案,并通过仿真验证了该功率控制方案的性能。仿真结果表明,该功率控制方案相对于基于数据速率的功率控制方案具有额外的4～6dB的增益。
In CDMA systems,power control is essential in mitigating co-channel interference and near-far effect, thus contributing to improving the capacity of systems. This paper introduced a channel gain based power control scheme, and verified its performance by simulations. The simulation results indicate that the channel gain based power control can achieve extra 4～6 dB gains in contrast to data rate based one.
出处
《通信技术》
2002年第7X期49-50,64,共3页
Communications Technology
关键词
CDMA
功率控制
信噪比
服务质量
信道增益
code division multi-access (CDMA), power control, signal-to-noise ratio (SNR), quality of service (QoS), channel gain
