IEEE Communications Magazine - June 2017 - page 182

IEEE Communications Magazine • June 2017
n this 19th issue of the Automotive Networking and Appli-
cations Series, we are pleased to present two articles that
address the following issues:
1.Using full-duplex radios for future vehicular communica-
2.Mobile small cell network architecture for delivering high
data rate services to users traveling on public transport.
Recently, the use of full-duplex (FD) techniques in 5G net-
works has received much research attention with the promise
of nearly doubling the system spectral efficiency. The poten-
tial implications of FD solutions in vehicular ad hoc networks
(VANETs), in the presence of harsh channel propagation envi-
ronments as well as with the availability of high-end transceivers
that could be installed onboard the vehicles, have not been fully
investigated. The first article, “Full-Duplex Radios for Vehicular
Communications” by C. Campolo
et al.
, examines the trade-
offs of adopting FD communications for VANETs and argues in
favor of embedding FD radios in onboard units (OBUs) of future
vehicles to help improve the performance of vehicular com-
munications. The authors first overview the FD concept from
the perspective of the PHY and medium access control (MAC)
layers, then discuss the benefits and challenges of using FD com-
munications for VANETs. The article then introduces a generic
FD vehicle-to-everything (V2X) system model, and proceeds
to explore the use of FD capabilities in relevant VANET use
cases — including vehicle-to-roadside (V2R) communications,
vehicle-to-vehicle (V2V) interactions for applications such as
cooperative driving and semi-autonomous driving. The authors
conclude with a discussion on the potential of FD communica-
tions in vehicular use cases and the relevant open issues.
Incorporating small cell networks (SCNs) in vehicular envi-
ronments can be a promising solution to facilitate high data rate
services to public transport users. However, successful imple-
mentation of mobile SCNs in such environments requires further
research. The second article, “Mobile Small Cells: Broadband
Access Solution for Public Transport Users” by A. Marzuki
et al.
presents a multi-tier mobile SCN architecture for public transport
systems, where a deterministic mobility pattern exists, to help
deliver broadband services to users traveling on public transport.
The authors first motivate the use of mobile small cells for public
transport and highlight key challenges in backhaul architecture,
interference, and frequency allocation. The article then propos-
es a multi-tier mobile SCN framework for public transport and
an efficient time-varying frequency allocation mechanism. The
authors then demonstrate, via simulations, that the proposed
solution achieves higher user throughput and spectral efficiency
over other existing solutions, and conclude with an outline of
open research challenges.
We thank all contributors who submitted manuscripts for this
series, as well as all the reviewers who helped with thoughtful
and timely reviews. We thank Dr. Osman Gebizlioglu, Editor-in-
Chief, for his support, guidance, and suggestions throughout the
process of putting together this issue. We also thank the IEEE
publication staff, particularly Ms. Peggy Kang and Ms. Jennifer
Porcello, for their assistance and diligence in preparing the issue
for publication.
received his B.S. degree from Zhejiang University,
and M.S., M.Phil., and Ph.D. degrees from Columbia University, New York. He is
chief scientist of the China Mobile Research Institute and general manager of the
China Mobile Internet-of-Things Institute. Previously he was VPGD of ASTRI, Hong
Kong, and chief scientist and director at Telcordia (formerly known as Bellcore),
New Jersey.
is manager of the Vehicle-Centric Communications Group at Mer-
cedes-Benz Research & Development North America Inc., Palo Alto, California.
He received his Ph.D. in computer science from the Technical University of Berlin,
Germany. He served for many years as a professor and associate director of the
Centre for Research on the Applications of Telematics to Organizations and Soci-
ety of the Catholic University at Milan, Italy.
is a team manager for BMW Group Research and Technology, where
he is responsible for projects on distributed information systems, including coop-
erative systems for active safety and automotive IT security. He studied computer
science and economics at Darmstadt University of Technology and at the Univer-
sity of British Columbia in Vancouver. He received his Ph.D. from the computer
science faculty of the Munich University of Technology.
[LF] received his Ph.D. degree in electronics from the University of
Tokyo. He is a professor emeritus at the University of Tokyo. He was chief scientist
and CTO of Toyota InfoTechnology Center. He is Chair of the Ubiquitous Net-
working Forum of Japan and Chair of the Next Generation IP Network Promotion
Forum of Japan. He has published eight books on electronics, computers, and
digital communications. He is a Fellow of IEICE of Japan.
etworking and
Wai Chen
Luca Delgrossi
Timo Kosch
Tadao Saito
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