The application of the TDMA technology to the PMPS (point?to?multipoint radio communication system) is discussed. The properties of the S?aloha agreement are analyzed and the realization of the S?aloha agreement in the system is given. ?

• 讨论了时分多址技术在点对多点无线通信系统中的应用,分析了S ALOHA协议的性能,给出S ALOHA在系统中的实现。