分组预约 meaning in Chinese

packet reservation

A method ( vp - prma ) based on the users demand to improve the performance of voice service in packet reservation multiple access ( prma ) system is proposed . after the analysis of prma , the new mothod , using variable contending probability according to the actual condition , is presented . according to the simulation , the probability of packet dropping is reduced
本文提出了利用用户自身信息之间的相关性区分用户，并适当地调整用户再次竞争信道的允许概率，来提高分组预约多址( prma )协议中话音业务性能的方法，从仿真的结果看，该方法降低了话音分组的丢失率