【摘要】 本文针对cdma2000系统的通信链路,提出了一种适应于前反向链路的外环功率控制的方法,它根据模糊控制的理论,建立了一系列的模糊规则,通过可变的调整步长,能对不同的通信环境作出灵敏的反应。与传统的方法相比,该方法提高了控制的精度,最大限度地减少了内环的发射功率,从而减少了系统的干扰,增加了系统的稳定性,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。更多还原

【Abstract】 Focus on the communication link of cdma2000, this paper proposes an outer-loop power control method which can adapt to the change of forward-reverse link. Based on the fuzzy control theory, this method constructs a serial of fuzzy rules and provides sensitive response to the different communication environments. Comparing with the conventional approaches, this method enhances control accuracy and reduces ultimately the inner-loop transmit power. This decreases the system multiple access interference (MAI), improves the system stability, and increases the system capacity. Simulation is performed to validate superiority of proposed the method.2001-08-28国家自然科学基金资助项目(60072040)更多还原