Improving the capacity of future IEEE 802.11 high efficiency WLANs

Jamil, Imad; Cariou, Laurent; Hélard, Jean-François

doi:10.1109/ict.2014.6845128

Cited by 28 publications

(16 citation statements)

References 10 publications

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“…However, due to the limited spectrum, WLAN network operators are feeling the crunch in providing service in crowded areas such as public buildings, universities, hotels, hospital, restaurants, stadiums, etc. A lot of research has been done to improve WLAN capacity [26,27]. In this situation, if LWA directs LTE traffic to WLAN networks, the unlicensed bands will be more congested.…”

Section: Challenges On An Unlicensed Bandmentioning

confidence: 99%

An Admission Control Mechanism for 5G LWA

2018

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Abstract: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.

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Section: Challenges On An Unlicensed Bandmentioning

confidence: 99%

An Admission Control Mechanism for 5G LWA

2018

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“…Jamil et al have evaluated the use of dynamic CST modification in [10] [11], but they have not proposed algorithms.…”

Section: A Related Workmentioning

confidence: 99%

Dynamic sensitivity control of access points for IEEE 802.11ax

Afaqui

García-Villegas

López-Aguilera

et al. 2016

2016 IEEE International Conference on Communications (ICC)

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The popularity and wider acceptance of IEEE 802.11 based WLANs has resulted in their dense deployments\ud in diverse environments. While this massive deployment can potentially increase capacity and coverage, the current\ud physical carrier sensing of IEEE 802.11 cannot limit the overall interference induced and also cannot insure high\ud concurrency among transmissions. Recently, the IEEE 802.11 working group has continued efforts on developing\ud WLAN technology through the creation of the TGax, which aims to improve efficiency of densely deployed IEEE 802.11\ud networks. In this paper, we propose a Dynamic Sensitivity Control for Access Point (DSC-AP) algorithm for IEEE\ud 802.11ax. This algorithm dynamically adjusts the Carrier Sensing Threshold (CST) of an AP based on received signal\ud strength from its associated stations and interfering APs. We show that the aggregate throughput of a dense network\ud (under asymmetric traffic conditions) utilizing DSC (both at the stations and AP) is considerably improved (i.e. up to\ud 32%) when compared with legacy IEEE 802.11. © 2016 IEEE.Peer ReviewedPostprint (published version

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“…Considerable amount of work has been done to study how physical carrier sensing mechanism affects the capacity and throughput of IEEE 802.11 based WLANs [2], [3]. The motivation behind this work is to improve the efficiency of those networks so that requirements for increased capacity and higher performance could be fulfilled.…”

Section: A Related Workmentioning

confidence: 99%

Evaluation of dynamic sensitivity control algorithm for IEEE 802.11ax

Afaqui

García-Villegas

López-Aguilera

et al. 2015

2015 IEEE Wireless Communications and Networking Conference (WCNC)

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The explosive growth in the usage of IEEE 802.11 network has resulted in dense deployments in diverse environments. Most recently, the IEEE working group has triggered the IEEE 802.11ax project, which aims to amend the current IEEE 802.11 standard to improve efficiency of dense WLANs. In this paper, we evaluate the Dynamic Sensitivity Control (DSC) Algorithm proposed for IEEE 802.11ax. This algorithm dynamically adjusts the Carrier Sense Threshold (CST) based on the average received signal strength. We show that the aggregate throughput of a dense network utilizing DSC is considerably improved (i.e. up to 20%) when compared with the IEEE 802.11 legacy network.Postprint (author's final draft

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Improving the capacity of future IEEE 802.11 high efficiency WLANs

Cited by 28 publications

References 10 publications

An Admission Control Mechanism for 5G LWA

An Admission Control Mechanism for 5G LWA

Dynamic sensitivity control of access points for IEEE 802.11ax

Evaluation of dynamic sensitivity control algorithm for IEEE 802.11ax

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