摘要
文章针对无线通信系统的上行通信链路,研究了一种基于盲源分离的空时处理方法,它仅利用各用户间相互独立的假设条件,用一个线性无记忆多入多出系统将干扰从混合信号或者是混有噪声的扩频信号中剔除,并且同时实现解扩。该方法具有抗远近效应的能力,减少了系统的多址干扰,提高了系统容量。仿真结果也证明了此方法的上述优越性能。
Focus on the uplink of wireless communication system, in this paper, a spatial-temporal processing technology based on blind source separation (BSS) is proposed. That aims to separate the interference from the mixtures and as such produce the spread spectrum signal with reduced jammer contamination exploiting only the assumption of mutual independence between the sources, and achieves despreading at the same time. This approach can be applied to further immune system against near-far effect. This decreases the system multiple access interference (MAI), increases the system capacity. Simulation is performed to validate superiority of the approach.
出处
《计算机测量与控制》
CSCD
2004年第10期999-1001,共3页
Computer Measurement &Control
