Channel Load Aware AP / Extender Selection in Home WiFi Networks Using IEEE 802.11k/v

Adame, Toni; Carrascosa, Marc; Bellalta, Boris; Pretel, Iván; Etxebarria, Inaki

doi:10.1109/access.2021.3059473

Cited by 10 publications

(3 citation statements)

References 41 publications

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“…Despite the fact that there are many alternate distributions that may be available and may be able to provide superior performance, wireless devices typically connect using a static distribution [32]. A load-balancing algorithm is designed that finds the optimum route for all flows [33]. The algorithm chooses several transmission channels for each information exchange, based on the required QoS.…”

Section: B Throughput Maximizationmentioning

confidence: 99%

TiWA: Achieving Tetra Indicator Wi-Fi Associations in Software Defined Wi-Fi Networks

Manzoor,

Kayani,

Ali

et al. 2023

IEEE Access

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With the rise in smart devices, challenges such as traffic management particularly in the indoor scenarios have also increased. Wireless technologies seek to address these needs by using new radio access technologies that offer faster connectivity and access to the Internet. While 4G and 5G provide faster connectivity outdoor, Wi-Fi still remains the dominant technology in indoor scenarios due to its low cost and easy deployment. However, the IEEE 802.11 standard does not address the fairness of load in user-access point (AP) associations, resulting in unequal user distributions and subpar resource utilization. Densification has been employed in the past to address the aforementioned issue, but it is costly as it requires more hardware. Load balancing is necessary in high-density Wi-Fi networks in order to guarantee quality of service (QoS). To avoid the densification and issues related to load balancing at the APs this paper introduces tetra indicator Wi-Fi associations (TiWA), a combined SDN-based user association and channel assignment solution for Wi-Fi networks. TiWA considers multi-criteria to make better association decisions. The wireless stations from an overloaded OpenFlow enabled AP (OAP) are handed to an underloaded OAP by considering multi-metrics such as the packet loss rate, received signal strength indicator (RSSI), throughput and channel occupancy. Extensive experimentations on 5G EmPOWER platform show that TiWA surpasses previous research methods based on load balancing in terms of aggregated throughput by 39%, offering superior level of load fairness and supporting greater numbers of users and traffic prior to hitting the point at which densification is required.

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Section: B Throughput Maximizationmentioning

confidence: 99%

TiWA: Achieving Tetra Indicator Wi-Fi Associations in Software Defined Wi-Fi Networks

Manzoor,

Kayani,

Ali

et al. 2023

IEEE Access

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“…Across the span of several decades, numerous load balancing strategies have been recommended to improve the association policy in such a way that WDs can select the most suitable AP to connect to the network [16]. The decentralized nature of existing Wi-Fi networks makes it impossible to centrally manage user imbalance distribution [17].…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Symmetrical Load Balancing Scheme for Next Generation Wireless Networks

Manzoor,

Mazhar,

Binaris

et al. 2023

Symmetry

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In dense Wi-Fi networks, achieving load balancing is critical to optimize network utilization and provide equitable network consumption among the users. Traditional Wi-Fi networks have issues in attaining effective load balancing. Software-Defined Networking (SDN) has presented a viable solution by isolating the data plane and control plane, enabling more agile and cost-effective networks. In this paper we put forward an Adaptive Symmetrical Load Balancing (ASLB) scheme to ensure fairness of load symmetry in Software Defined Wi-Fi Networks (SD-Wi-Fi), while also optimizing the flows transition process using an Analytical Hierarchal Process (AHP). User activity is monitored by access points (APs), which operate under OpenFlow standards. Three essential features, packet volume, packet category and delay hindrance, are used for flow assignment to various controllers. The controllers are arranged in two tiers, universal and regional controllers. The universal controller (UC) handles the workload statistics of regional controllers (RC) in the form of clusters. Extensive simulations using OMNeT++ simulator are performed. The performance parameters taken into consideration are throughput, delay, packet loss rate, network transition count and workload distribution. Our findings demonstrate that the ASLB technique effectively optimizes the network utilization and ensures equitable network consumption among the end users. The proposed scheme outperforms the Mean Probe Delay scheme (MPD), Channel Measurement-based Access Selection scheme (CMAS), Received Signal Strength Indicator-based scheme (RSSI) and Distributed Antenna Selection scheme (DASA), being 40% higher in throughput and 25% lower in delay.

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“…WiFi networks have rapidly grown in the past decade due to low costs and simple technical implementation 1 . Most of the wireless devices (approximately 70%) by 2023 will use WiFi network for the access to the internet 2‐4 . Due to increased number of wireless applications the users demand quick accessibility through the internet especially when dealing with real‐time audio and video.…”

Section: Introductionmentioning

confidence: 99%

An SDN‐based technique for reducing handoff times in WiFi networks

Manzoor

Ali

et al. 2021

Int J Communication

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Summary The handoff process in WiFi networks has a very important role to provide continuity of the service to wireless users where the access points (APs) are in numerous numbers. In traditional WiFi networks, the handoff process takes a few seconds and is initiated by the wireless devices, but these few seconds could be a reason for information loss when dealing with delay sensitive applications. In this paper, we propose a reduced detection and discovery time approach (DeRy), which generates a solution based on software defined WiFi networks (SD‐WiFi). A simple network management protocol (SNMP) manager and received signal strength indicator (RSSI) manager are employed to report the AP traffic conditions and RSSI values to the SDN controller and instead of the wireless devices, the handoff decisions are taken at the controller end. When to initiate the handoff (detection phase) and which destination AP to associate to (discovery phase) are handled by the centralized SDN controller. To implement DeRy, extensive simulation runs are carried out on Mininet‐NS3‐WiFi network simulator. The simulation results show that the DeRy significantly reduces the handoff times by 60–70% and reduces the average number of retransmission by 4–49%, hence maintaining the throughput for delay sensitive applications such as VoIP, when compared to the standard RSSI‐based handoff scheme, channel measurement based access selection scheme (CMAS) and (DL‐SINR) downlink‐signal to interference plus noise ratio AP selection scheme (DASA).

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Channel Load Aware AP / Extender Selection in Home WiFi Networks Using IEEE 802.11k/v

Cited by 10 publications

References 41 publications

TiWA: Achieving Tetra Indicator Wi-Fi Associations in Software Defined Wi-Fi Networks

TiWA: Achieving Tetra Indicator Wi-Fi Associations in Software Defined Wi-Fi Networks

An Adaptive Symmetrical Load Balancing Scheme for Next Generation Wireless Networks

An SDN‐based technique for reducing handoff times in WiFi networks

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