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

2021 ◽  
Author(s):  
Hira Manzoor ◽  
Sohaib Manzoor ◽  
Noman Ali ◽  
Muhammad Sajid ◽  
Muhammad Ilyas Menhas ◽  
...  
Keyword(s):  
Wifi Networks

Wi-fire: Device-free fire detection using WiFi networks

2017 ◽  
Author(s):  
Shuxin Zhong ◽  
Yongzhi Huang ◽  
Rukhsana Ruby ◽  
Lu Wang ◽  
Yu-Xuan Qiu ◽  
...  
Keyword(s):  
Fire Detection ◽  
Wifi Networks ◽  
Device Free

scholarly journals On the Tradeoff between Performance and Programmability for Software Defined WiFi Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Tausif Zahid ◽  
Xiaojun Hei ◽  
Wenqing Cheng ◽  
Adeel Ahmad ◽  
Pasha Maruf
Keyword(s):  
Performance Optimization ◽  
Traffic Flows ◽  
Network Access ◽  
Performance Measurements ◽  
Throughput Performance ◽  
Wifi Networks ◽  
Traffic Loads ◽  
High Bandwidth ◽  
Potential Benefits ◽  
Sdn Controller

WiFi has become one of the major network access networks due to its simple technical implementation and high-bandwidth provisioning. In this paper, we studied software defined WiFi networks (SDWN) against traditional WiFi networks to understand the potential benefits, such as the ability of SDWN to effectively hide the handover delay between access points (AP) of the adoption of the SDWN architecture on WiFi networks and identify representative application scenarios where such SDWN approach could bring additional benefits. This study delineated the performance bottlenecks such as the throughput degradation by around 50% compared with the conventional WiFi networks. In addition, our study also shed some insights into performance optimization issues. All of the performance measurements were conducted on a network testbed consisting of a single basic service set (BSS) and an extended service set (ESS) managed by a single SDN controller deployed with various laboratory settings. Our evaluation included the throughput performance under different traffic loads with different number of nodes and packet sizes for both TCP and UDP traffic flows. Handover delays were measured during the roaming phase between different APs against the traditional WiFi networks. Our results have demonstrated the tradeoff between performance and programmability of software defined APs.

Performance modeling of next-generation WiFi networks

2016 ◽  
Vol 105 ◽  
pp. 150-165 ◽  
Author(s):  
Antonios Michaloliakos ◽  
Ryan Rogalin ◽  
Yonglong Zhang ◽  
Konstantinos Psounis ◽  
Giuseppe Caire
Keyword(s):  
Performance Modeling ◽  
Next Generation ◽  
Wifi Networks

scholarly journals Solution for indoor positioning using WIFI networks

2019 ◽  
Vol 2 ◽  
pp. 1-8
Author(s):  
Carolina Aguilar Aravena ◽  
Luciene Stamato Delazari
Keyword(s):  
Real Time ◽  
Open Source Software ◽  
Exponential Growth ◽  
Center Of Mass ◽  
Indoor Positioning ◽  
High Availability ◽  
Wifi Networks ◽  
Positioning Systems ◽  
High Level ◽  
Level Of Agreement

<p><strong>Abstract.</strong> The use of Indoor Positioning Systems (IPS) has gained an exponential growth due to the high availability of infrastructure to carry out its development. In this context this work presents the development of an Open Source Software for indoor positioning with the use of WIFI networks, since in this type of environment the pedestrian needs a greater assistance for its location and navigation. The application was developed in Android Studio, with a database generated using the WIFI routers of the study area. In addition, the position of the user in real time is showed in a map. The positioning techniques used for this application were Proximity, Center of Mass and Trilateration. The results shows that it is possible to obtain a high level of agreement in the identification of building and floor. The results also show that it is possible to develop an indoor positioning application through WIFI networks.</p>

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