Computers and Electrical Engineering 72 (2018) 543–552
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Computers and Electrical Engineering
journal homepage: www.elsevier.com/locate/compeleceng
Resource block filtered-OFDM as a multi-carrier transmission
scheme for 5G
R
Yingxin Zhao
a , b
, Xiuying Hao
a , b
, Zhiyang Liu
a , b , ∗
, Hong Wu
a , b
, Shuxue Ding
a , b , c
a
College of Electronic Information and Optical Engineering, Nankai University, Tianjin, China.
b
Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology, Nankai University, Tianjin, China.
c
School of Computer Science and Engineering, the University of Aizu, Aizu-Wakamatsu City, Fukushima 965-8580, Japan
a r t i c l e i n f o
Article history:
Received 9 January 2017
Revised 29 November 2017
Accepted 2 December 2017
Available online 9 December 2017
Keywords:
Multi-carrier transmission
OFDM
Adjacent channel interference
FBMC
a b s t r a c t
The fifth generation of mobile communications, which has higher requirements for data
rate and spectral efficiency, will be a key technology for future wireless communication
systems. Therefore, based on the current spectral division, the use of idle spectra of low-
frequency bands is needed to address 5G mobile scenarios. The side lobe in frequency
division multiplexing (OFDM), which is widely adopted in 4G, is so high that it produces
adjacent channel interference. The addition a cyclic prefix is necessary to resolve such an
interference problem; however, this leads to spectral efficiency degradation. Therefore, this
study presents a new multi-carrier transmission technique for future wireless communi-
cation systems. Intuited by the filter bank based multi-carrier (FBMC) and the universal-
filtered multi-carrier (UFMC), we proposed band resource block filtered orthogonal fre-
quency division multiplexing (RB F-OFDM). RB F-OFDM retains the advantages of OFDM;
moreover, its sideband has rapid attenuation, its energy is more concentrated, and it can
avoid inter-carrier interference (ICI). When adjacent channel interference exists, the per-
formance of RB F-OFDM is better than that of OFDM and UFMC.
©2017 Elsevier Ltd. All rights reserved.
1.
Introduction
The fifth generation of mobile communications (5G), with its higher spectral efficiency and lower power consumption,
will represent the new generation of mobile communication technology by 2020 and beyond [1–3] . Compared with the
fourth generation of mobile communications, 5G is expected to provide a significantly improved transmission rate, resource
utilization ratio, and user experience, among other features [4,5] . Four major technology scenarios have been proposed for
5G, namely, a continuously wider area coverage, high capacity of hot spots, higher connectivity with low-power consump-
tion, high reliability, and low delay. The high capacity of hot spots scenarios requires that the user experience speeds of
up to 1 Gbps; a very wide bandwidths is needed to support such a high data rate. Because the signal transmission below
the 6 GHz frequency band is good, this band will become the main frequency band for 5G. The high frequency bands be-
tween 6 GHz and 100 GHz are more available and thus will become the auxiliary frequency band for 5G [6–8] . However, a
continuous spectrum bandwidth is hardly obtained especially in the low frequency band. Instead, various unconnected free
R
Reviews processed and recommended for publication to the Editor-in-Chief by Associate Editor Dr. H. Tian.
∗
Corresponding authors.
E-mail addresses: zhaoyx@nankai.edu.cn (Y. Zhao), hxy@mail.nankai.edu.cn (X. Hao), liuzhiyang@nankai.edu.cn (Z. Liu), wuhong@nankai.edu.cn (H. Wu),
sding@u-aizu.ac.jp (S. Ding).
https://doi.org/10.1016/j.compeleceng.2017.12.008
0045-7906/© 2017 Elsevier Ltd. All rights reserved.