Reducing State Information by Sharing IMSI for Cellular IoT Devices
Reducing State Information by Sharing IMSI for Cellular IoT Devices
复制标题
通过共享蜂窝物联网设备的 IMSI 减少状态信息
DOI：
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复制
发表时间：
2016
影响因子：
10.6
通讯作者：
M. Murata
中科院分区：
文献类型：
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作者：
Manabu Ito;N. Nishinaga;Y. Kitatsuji;M. Murata
为了为大量的物联网（IoT）设备提供蜂窝通信，移动核心系统（在4G系统中称为演进分组核心（EPC））需要大量的计算资源。这是因为EPC需要维护物联网设备的通信状态信息，即使它们很少发送数据。提出了一种状态信息约简方法。该方法为多个物联网设备分配相同的国际移动用户身份，使其以相同的周期上传数据，并对不同时间上传数据的设备进行管理。通过多次仿真验证，研究了影响该方法性能的因素，结果表明，与现有的EPC方法相比，该方法可以将所需的状态信息减少到0.5%以下。
To provide cellular communications for a large number of Internet of Things (IoT) devices, the mobile core system, called evolved packet core (EPC) in the case of a 4G system, requires a large amount of computational resources. This is because the EPC needs to maintain communication state information for IoT devices, even if they rarely send data. This paper proposes a method for reducing state information. The proposed method assigns the same international mobile subscriber identity to multiple IoT devices, which upload data with the same cycle, and manages devices uploading data at different timings. This paper investigates the impact of factors affecting the performance of the proposed method through several simulation-based verifications and shows that the proposal can reduce the required state information to less than 0.5% compared to the current EPC method.