Page 170 - ITU Journal, Future and evolving technologies - Volume 1 (2020), Issue 1, Inaugural issue

ITU Journal on Future and Evolving Technologies, Volume 1 (2020), Issue 1

5. CONCLUSION [9] O. Al-Khatib, W. Hardjawana, and B. Vucetic.
Spectrum sharing in multi-tenant 5G cellular net-
Infrastructure sharing in mobile networks has been a
pervasive research topic over the last three decades and works: Modeling and planning. IEEE Access,
7:1602–1616, 2019.
has produced a significant body of work.
[10] L. Anchora, M. Mezzavilla, L. Badia, and
One interesting takeaway from this survey is that while M. Zorzi. A performance evaluation tool for spec-
researchers sought enabling technologies to materialize trum sharing in multi-operator LTE networks.
infrastructure sharing in 3G and 4G networks, in 5G Computer Communications, 35(18):2218–2226,
networks instead, infrastructure sharing became an im- November 2012.
portant pillar of the 5G architecture which means that
in turn 5G enables infrastructure sharing from a busi- [11] J. G. Andrews, S. Buzzi, W. Choi, S. V. Hanly,
ness point of view. In these lines one can easily argue A. Lozano, A. C. Soong, and J. C. Zhang. What
the presence of infrastructure sharing also in future net- will 5g be? IEEE Journal on selected areas in
works. communications, 32(6):1065–1082, 2014.

As for the mobile ecosystem, it is worth noting that the [12] C. Anglano, M. Guazzone, and M. Sereno.
concepts of decoupling infrastructure from services and Maximizing profit in green cellular networks
dynamic spectrum trading have been anticipated in the through collaborative games. Computer Networks,
literature over two decades ago but they have come into 75:260–275, 2014.
being only recently (mainly in 5G networks).
[13] A. Antonopoulos, E. Kartsakli, A. Bousia,
Of the several research branches within the infrastruc- L. Alonso, and C. Verikoukis. Energy-efficient
ture and spectrum sharing topics, resource management infrastructure sharing in multi-operator mobile
in the context of resource sharing has been and will be networks. IEEE Communications Magazine,
one of the most active research branches given the cur- 53(5):242–249, 2015.
rent and future need for dynamic resource sharing.
[14] O. Aydin, E. A. Jorswieck, D. Aziz, and A. Zap-
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