Next Article in Journal
A Quantitative Evaluation of Drive Pattern Selection for Optimizing EIT-Based Stretchable Sensors
Next Article in Special Issue
Energy-Efficient Optimal Power Allocation in Integrated Wireless Sensor and Cognitive Satellite Terrestrial Networks
Previous Article in Journal
Geometrical Characterisation of a 2D Laser System and Calibration of a Cross-Grid Encoder by Means of a Self-Calibration Methodology
Previous Article in Special Issue
Full-Duplex Cooperative Sensing for Spectrum-Heterogeneous Cognitive Radio Networks
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessConcept Paper
Sensors 2017, 17(9), 1994;

Cooperation Techniques between LTE in Unlicensed Spectrum and Wi-Fi towards Fair Spectral Efficiency

IDLab, Department of Information Technology, imec, Ghent University, Technologiepark Zwijnaarde 15, B-9052 Ghent, Belgium
Author to whom correspondence should be addressed.
Received: 7 July 2017 / Revised: 21 August 2017 / Accepted: 28 August 2017 / Published: 31 August 2017
(This article belongs to the Special Issue Cognitive Radio Sensing and Sensor Networks)
Full-Text   |   PDF [4784 KB, uploaded 31 August 2017]   |  


On the road towards 5G, a proliferation of Heterogeneous Networks (HetNets) is expected. Sensor networks are of great importance in this new wireless era, as they allow interaction with the environment. Additionally, the establishment of the Internet of Things (IoT) has incredibly increased the number of interconnected devices and consequently the already massive wirelessly transmitted traffic. The exponential growth of wireless traffic is pushing the wireless community to investigate solutions that maximally exploit the available spectrum. Recently, 3rd Generation Partnership Project (3GPP) announced standards that permit the operation of Long Term Evolution (LTE) in the unlicensed spectrum in addition to the exclusive use of the licensed spectrum owned by a mobile operator. Alternatively, leading wireless technology developers examine standalone LTE operation in the unlicensed spectrum without any involvement of a mobile operator. In this article, we present a classification of different techniques that can be applied on co-located LTE and Wi-Fi networks. Up to today, Wi-Fi is the most widely-used wireless technology in the unlicensed spectrum. A review of the current state of the art further reveals the lack of cooperation schemes among co-located networks that can lead to more optimal usage of the available spectrum. This article fills this gap in the literature by conceptually describing different classes of cooperation between LTE and Wi-Fi. For each class, we provide a detailed presentation of possible cooperation techniques that can provide spectral efficiency in a fair manner. View Full-Text
Keywords: LTE; Wi-Fi; cooperation; coexistence; cognitive radio; spectral efficiency; fairness LTE; Wi-Fi; cooperation; coexistence; cognitive radio; spectral efficiency; fairness

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Maglogiannis, V.; Naudts, D.; Shahid, A.; Giannoulis, S.; Laermans, E.; Moerman, I. Cooperation Techniques between LTE in Unlicensed Spectrum and Wi-Fi towards Fair Spectral Efficiency. Sensors 2017, 17, 1994.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top