Wireless communication between public safety officers is very important to transmit voice or data during emergency crises. When the public communication networks cannot provide services during crises, disasters, and high traffic cases, Professional or private mobile radio (PMR) such as Association of Public Safety Communications Officials (APCO25) conventional systems are needed to improve the service quality and to provide uninterrupted service to the users. In this paper, we propose traffic-based cell selection algorithms for the APCO25 conventional systems to attach users to base stations in a balanced manner to reduce waiting time while establishing a connection. The simulation results of the proposed traffic load–based cell selection algorithms are illustrated in terms of the RSSI measurements counter, the number of connection requests, the average waiting time, and the number of re-selections for the APCO25 conventional systems.

中文翻译：

---

基于APCO25常规专业移动无线电的基于业务负载的小区选择

公共安全人员之间的无线通信对于在紧急危机期间传输语音或数据非常重要。当公共通信网络在危机，灾难和高流量情况下无法提供服务时，需要使用专业或专用移动无线电（PMR），例如公共安全通信官员协会（APCO25）的常规系统来提高服务质量并提供不间断的服务。服务于用户。在本文中，我们提出了针对APCO25常规系统的基于流量的小区选择算法，以平衡方式将用户连接到基站，以减少建立连接时的等待时间。提出的基于流量负载的小区选择算法的仿真结果以RSSI测量计数器，连接请求的数量，