Space-Air-Ground Integrated Network for Disaster Management: Systematic Literature Review

Table 2

Research question.

Number	Research questions	Motivation
RQ1	What are the channels of publication focusing on DMS?	To search and quantify the quality of different publication sources and to investigate research related to DMS
RQ2	How the frequency of recent publications related to DMS has been changed over time?	To find out the trend in the research of DMS and explain the number of publications related to DMS made in the last 10 years
RQ3	How are different methods and techniques being used for developing an effective SAGIN-based DMS?	To identify and describe the different approaches used for an effective SAGIN-based DMS
RQ4	What are the main challenges that can occur while establishing a DMS using SAGIN?	To identify the different issues and challenges presented in the existing studies for SAGIN related systems