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组寻呼方案有效的解决了大量机器类型通信(MTC,Machine-type Communications)设备同时接入LTE无线网络的拥塞问题。主要对MTC组寻呼基于提前退避的随机接入策略进行深入研究,通过对组寻呼基于提前退避策略进行理论建模,得到其性能分析表达式。数值分析结果表明,基于提前退避的随机接入策略比基于传统的随机接入策略更能提高组寻呼的接入性能。
The group paging solution effectively solves the congestion problem that a large number of Machine-type Communications (MTC) devices access the LTE wireless network at the same time. The paper mainly studies on the MTC group paging based on the early-back-off random access strategy. Through the theoretical modeling of the group paging based on the advance back-off strategy, the performance analysis expression is obtained. The numerical analysis shows that the random access strategy based on early evacuation can improve the access performance of group paging more than the traditional random access strategy.