Network Service Chaining in Fog and Cloud Computing for the 5G Environment: Data Management and Security Challenges

Rajat Chaudhary, Neeraj Kumar, Sherali Zeadally

Research output: Contribution to journalArticlepeer-review

98 Scopus citations


In the last few years, we have seen an exponential increase in the number of Internet-enabled devices, which has resulted in popularity of fog and cloud computing among end users. End users expect high data rates coupled with secure data access for various applications executed either at the edge (fog computing) or in the core network (cloud computing). However, the bidirectional data flow between the end users and the devices located at either the edge or core may cause congestion at the cloud data centers, which are used mainly for data storage and data analytics. The high mobility of devices (e.g., vehicles) may also pose additional challenges with respect to data availability and processing at the core data centers. Hence, there is a need to have most of the resources available at the edge of the network to ensure the smooth execution of end-user applications. Considering the challenges of future user demands, we present an architecture that integrates cloud and fog computing in the 5G environment that works in collaboration with the advanced technologies such as SDN and NFV with the NSC model. The NSC service model helps to automate the virtual resources by chaining in a series for fast computing in both computing technologies. The proposed architecture also supports data analytics and management with respect to device mobility. Moreover, we also compare the core and edge computing with respect to the type of hypervisors, virtualization, security, and node heterogeneity. By focusing on nodes' heterogeneity at the edge or core in the 5G environment, we also present security challenges and possible types of attacks on the data shared between different devices in the 5G environment.

Original languageEnglish
Article number8114560
Pages (from-to)114-122
Number of pages9
JournalIEEE Communications Magazine
Issue number11
StatePublished - Nov 2017

Bibliographical note

Funding Information:
We are thankful to all the anonymous reviewers for their valuable suggestions, which improved the overall quality and presentation of the article. The work presented in this article is supported by the Council of Scientific and Industrial Research, New Delhi (no. 22/717/16/EMR-II).

Funding Information:
NeeRaj KumaR [M’16, SM’17] ( is working as an associate professor in the Department of CSED, Thapar University. He received his Ph.D. from SMVD University, Katra (J&K) in computer science and engineering. He was a postdoctoral research fellow at Coventry University, United Kingdom. He has more than 150 research papers in leading journals and conferences. His research is supported by UGC, DST, CSIR, and TCS. He is an Associate Editor of IJCS, Wiley and JNCA, Elsevier.

Publisher Copyright:
© 1979-2012 IEEE.

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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