Research challenges in 5G networks: a HetNets perspective

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Farooq, Muhammad O.
Sreenan, Cormac J.
Brown, Kenneth N.
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This paper highlights use cases, emerging machine type communication (MTC) technologies, ongoing research activities, and existing research challenges in 5G networks. 5G networks are faced with the following challenges: (i) handling large amounts of data, (ii) coping with different types of data traffic, i.e., human-type, machine-type, and combined-type (iii) connecting billions of machines, and (iv) severe resource limitations of devices. The ubiquitous nature of cellular networks make them the preferred choice for access networks, but a lack of communication resources is a problem. To address the resource scarcity issue, different wireless access networks may combine to form a heterogeneous network (HetNet) and hence become a single 5G network. For long-term success of 5G networks, we envision the following as important research outputs: (i) a scalable 5G network architecture that can handle a large number of human users and machines considering different constraints, (ii) a comprehensive quality of service (QoS) framework to satisfy heterogeneous users and machines requirements, (iii) a procedure for intelligent access network selection, and (iv) comprehensive inter-network handover mechanisms.
5G Networks , HetNets , Machine-Type Communication , Quality of Service , Network Architecture.
Farooq, M. O., Sreenan, C. J. and Brown, K. N. (2016) 'Research Challenges in 5G Networks: a HetNets Perspective' 19th International Conference on Innovations in Clouds, Internet and Networks (ICIN 2016), 1-3 March, Paris, pp. 177-183. isbn:978-3-901882-81-4
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© 2016 IFIP. This is the author’s accepted manuscript version of the work. It is posted here by permission of IFIP for your personal use. Not for redistribution. The definitive version is published in IFIP Open Digital Library, ISBN: 978-3-901882-81-4,