Editorial: Recent Advances on the Next Generation of Mobile Networks and Services
Editorial: Recent Advances on the Next Generation of Mobile Networks and Services
Zheng Yan 0 1 2 3 4
Athanasios V. Vasilakos 0 1 2 3 4
Laurence T. Yang 0 1 2 3 4
0 Lulea University of Technology , 97187 Lulea , Sweden
1 Department of Communications and Networking, Aalto University , Espoo , Finland
2 State Key Laboratory on Integrated Services Networks, Xidian University , Xi'an, Shaanxi , China
3 Department of Computer Science, St. Francis Xavier University , Antigonish, NS B0H 1X0 , Canada
4 School of Computer Science and Technology, Huazhong University of Science and Technology , 1037 Luoyu Rd, Hongshan, Wuhan, Hubei , China
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Editorial
Following the great success of 2G and 3G mobile networks and
the fast growth of 4G, the next generation mobile networks or
5th generation wireless systems (in short 5G) was proposed
aiming to provide infinite networking capability to mobile
users. Different from 4G, 5G is much more than increased
maximum throughput. It aim to involve and benefit from many
current technical advances including massive dense networks,
interference and mobility management, Internet of Things
(IoT), pervasive and social computing, mobile ad hoc networks
(MANET), cognitive radio, World Wide Wireless Web
(WWWW), cloud computing, IPv6, and so on. How 5G should
and will be, what will be the keys for 5G? What is the
perspective of 5G architecture and technologies? How to effectively
apply and benefit from the above technologies and make them
intelligently interoperate together? How can 5G stimulate our
innovation for the next generation of mobile networks and
services? Obviously, integrating all above existing advanced
technologies and innovating new techniques for 5G bring extreme
challenges on 5G networks and services in both research and
development. This study has just initiated in both industry and
academia, but with great fervor all over the world.
This special issue features six selected papers with high
quality. The first article, BD2D Communication Meets Big
Data: From Theory to Application^, authored by Liang Zhou,
proposed a systematic solution for large-scale video
transmissions over D2D communications in order to overcome the
challenges of D2D communications, such as limited storage
capacity, discrepant computational ability, dynamic
communication environment, random network establishment, and the
diverse services of the large scale video applications.
The second article titled BSoftware-Defined Wireless
Transport Networks for Flexible Mobile Backhaul in 5G Systems^
presented the motivation for introducing programmability
concepts in wireless transport networks and illustrated the
applicability of control plane with two use cases for dynamically
controlling wireless transport nodes in 5G networks towards
Software Defined Wireless Transport Networks (SDWTNs).
In the next article with the title BContext-Aware User
Association for Energy Cost Saving in A Green Heterogeneous
Network with Hybrid Energy Supplies^, the authors studied the
user association problem to reduce the total energy cost of a
heterogeneous cellular network with wireless backhauls and
hybrid energy supplies. By considering both the power
consumption of a base station and backhaul links, two algorithms
were proposed to exploit available context-aware information
of a network in a centralized way or a distributed way in order to
find a feasible and near-optimal solution. Network architecture
knowledge, users’ data requirements, and available green
energy are investigated in solving energy cost saving problems.
Cognitive radio (CR) is widely regarded as one of the most
promising technologies for 5G wireless communications. The
fourth article titled BDynamic Spectrum Access Algorithm
Based on Game Theory in Cognitive Radio Networks^
proposed a dynamic spectrum access (DSA) algorithm based on
game theory. It jointly performs spectrum leasing and
interference mitigation among secondary users. The proposed
scheme enables secondary users to efficiently utilize the
licensed spectrum shared with primary users in a dynamic
environment while maximizing the spectrum utilization.
Cloud computing offers a new way of service provision
and will definitely play an important role in the next
generation mobile networks and services. Cloud data protection is a
crucial issue that impacts the success of cloud computing and
may impede the development of 5G. The fifth article,
BControlling Cloud Data Access Based on Reputation^
proposed a practical scheme to securely access cloud data and
effectively reduce access risk according to the reputations of
cloud computing entities. By applying proxy re-encryption,
cloud data access can be efficiently controlled in the situation
that the data owner is not available online or does not know
how to control the access.
The last article titled BEfficiently Predicting
Trustworthiness of Mobile Services Based on Trust Propagation in Social
Networks^ investigated efficient trust prediction in a
larg (...truncated)