Emergency communication network (ECN) is the important infrastructure to acquire the real-time information after disaster, which is essential for rescue task. However, the existed routing protocols seldom consider the uneven distribution of rescue area so that cannot satisfy the ECN’s requirement and the quality of rescue needs improvement. In this paper, we avoided the traditional linear propulsion from rim to core and proposed a novel four-quadrant mobility model (FQMM), which makes rescuers arrive the most intensity core area first, which can improve the rescue quality. Then, a FQMM-based protocol (FQMMBP) for ECN is designed, which aims to improve the performance of ECN in terms of package delivery rate (PDR) and end-to-end delay. Finally, we set up a virtual earthquake scenario to simulate our proposed protocol in NS2. Results show that the proposed protocol outperforms to the three compared routing protocols, i.e., AODV, DSDV and DSR. The average FDR is improved by 16.31%, and the average reduction of delay is 64.45%, which shows our proposed scheme’s advantages in quality of rescue.

应急通信网络（ECN）是获取灾后实时信息的重要基础设施，对救援任务至关重要。然而，现有的路由协议很少考虑救援区域分布不均，无法满足ECN的要求，救援质量有待提高。在本文中，我们避免了从边缘到核心的传统线性推进，并提出了一种新颖的四象限移动模型（FQMM），使救援人员首先到达强度最大的核心区域，从而提高救援质量。然后，设计了一种基于 FQMM 的 ECN 协议（FQMMBP），旨在提高 ECN 在包裹递送率（PDR）和端到端延迟方面的性能。最后，我们建立了一个虚拟地震场景来模拟我们在 NS2 中提出的协议。结果表明，所提出的协议优于三种比较路由协议，即AODV、DSDV 和DSR。FDR平均提高了16.31%，延误平均减少了64.45%，说明了我们提出的方案在救援质量上的优势。