Next Article in Journal
Multi-Stakeholder and Multi-Level Interventions to Tackle Climate Change and Land Degradation: The Case of Iran
Next Article in Special Issue
Cloud–Fog–Based Smart Grid Model for Efficient Resource Management
Previous Article in Journal
A Comparative Approach to Artificial and Natural Green Walls According to Ecological Sustainability
Previous Article in Special Issue
An Experimental Channel Capacity Analysis of Cooperative Networks Using Universal Software Radio Peripheral (USRP)

An Admission Control Mechanism for 5G LWA

Department of Information and Communication Engineering, Yeungnam University, Gyeongsan si 38541, Korea
Author to whom correspondence should be addressed.
Sustainability 2018, 10(6), 1999;
Received: 23 May 2018 / Revised: 11 June 2018 / Accepted: 12 June 2018 / Published: 13 June 2018
(This article belongs to the Special Issue 5G Mobile Services and Scenarios: Challenges and Solutions)
To alleviate the spectrum scarcity problem in fifth-generation (5G) networks, traditional mobile data offloading schemes from long term evolution (LTE) to wireless local area networks (WLANs) have been revised by the third-generation partnership project (3GPP) in release 13, which is known as LTE-WLAN aggregation (LWA). With LWA, user equipment units (UEs) supporting both LTE and WLAN can utilize both LTE and WLAN links simultaneously. Thus, UEs under the coverage of an LWA network will be surrounded by multiple standards, such as LTE, WLAN, and LWA, along with cells of different sizes and coverage. Providing the LWA service to all UEs unconditionally may lead to serious intra-cell unfairness, degradation of system-level quality of service (QoS), and a reduction in system resource utilization. Hence, to resolve this issue, two important challenges need to be addressed: Which LTE UEs should be transferred, and how many LTE UEs need to be transferred. In this paper, we propose a user-offloading algorithm for evolved node B (eNB) hardware that smartly allocates the deprived LTE UEs and assigns the LWA service to an optimal number of UEs without degrading the QoS for existing WLAN UEs. With this proposed scheme, all LWA-preferred UEs with poor LTE performance and a good WLAN condition have the opportunity to access LWA service to improve performance. We show that the proposed scheme maximizes the throughput performance of the whole network. View Full-Text
Keywords: coexistence; LTE; LWA; unlicensed band; WLAN; 5G coexistence; LTE; LWA; unlicensed band; WLAN; 5G
Show Figures

Figure 1

MDPI and ACS Style

Bajracharya, R.; Shrestha, R.; Kim, S.W. An Admission Control Mechanism for 5G LWA. Sustainability 2018, 10, 1999.

AMA Style

Bajracharya R, Shrestha R, Kim SW. An Admission Control Mechanism for 5G LWA. Sustainability. 2018; 10(6):1999.

Chicago/Turabian Style

Bajracharya, Rojeena, Rakesh Shrestha, and Sung W. Kim. 2018. "An Admission Control Mechanism for 5G LWA" Sustainability 10, no. 6: 1999.

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

Article Access Map by Country/Region

Back to TopTop