UAV-Empowered Disaster-Resilient Edge Architecture for Delay-Sensitive Communication

Zeeshan Kaleem , Muhammad Yousaf , Aamir Qamar, Ayaz Ahmad , Trung Q. Duong, Wan Choi, Abbas Jamalipour

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)


The 5G communication systems will enable enhanced mobile broadband, ultra-reliable low-latency, and massive connectivity services. Broadband and low-latency services are indispensable to public safety (PS) communication during natural or man-made disasters. Recently, 3GPP-LTE has emerged as a promising candidate to enable broadband PS communications. In this article, first we present six major PS-LTE enabling services and the current status of PS-LTE in 3GPP releases. Then, we discuss the spectrum bands allocated for PS-LTE in major countries by ITU. Finally, we propose a disaster resilient three-layered architecture for PS-LTE (DR-PSLTE). This architecture consists of an SDN layer to provide centralized control, UAV cloudlet layer to facilitate edge computing or to enable the emergency communication link, and a radio access layer. The proposed architecture is flexible and combines the benefits of SDNs and edge computing to efficiently meet the delay requirements of various PS-LTE services. Numerical results verified that under the proposed DR-PSLTE architecture, delay is reduced by 20 percent as compared with the conventional centralized computing architecture.
Original languageEnglish
Number of pages9
JournalIEEE Network
Early online date15 May 2019
Publication statusEarly online date - 15 May 2019


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