改进的无线自组网多址协议采用控制信道和接入信道分离设计，改善了网络的信道利用率和传输的可靠性。
With separated designs for control channel and access channel, this MAC protocol mechanism improves the channel utilization and the data transport reliability.
文章首先详细介绍了接入系统的基本原理和关键技术，包括调制技术、差错控制技术、多址接入技术、嵌入式系统技术。
Firstly, the basic principles and the key techniques of access system is introduced, which includes modulation, error control, multi-address access, and embedded-system techniques.
功率控制技术是CD MA系统克服“远—近效应”，降低多址干扰、增大系统容量的一项关键技术。
Power control is a key technique in CDMA cellular mobile communication systems. It can combat near far effect, reduce multiple access interference and improve the system capacity.
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