scholarly journals Optimal Placement of Access Point in WLAN Based on a New Algorithm

2005 ◽  
Author(s):  
S. Kouhbor ◽  
J. Ugon ◽  
A. Kruger ◽  
A. Rubinov
Keyword(s):  
Access Point ◽  
Optimal Placement

scholarly journals Deep learning-based optimal placement of a mobile HAP for common throughput maximization in wireless powered communication networks

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Hong-Sik Kim ◽  
Inwhee Joe
Keyword(s):  
Deep Learning ◽  
Convex Function ◽  
Communication Networks ◽  
Complex Function ◽  
Access Point ◽  
Throughput Maximization ◽  
Optimal Placement ◽  
Mathematical Methods ◽  
Hybrid Access ◽  
Wireless Device

AbstractHybrid access point (HAP) is a node in wireless powered communication networks (WPCN) that can distribute energy to each wireless device and also can receive information from these devices. Recently, mobile HAPs have emerged for efficient network use, and the throughput of the network depends on their location. There are two kinds of metrics for throughput, that is, sum throughput and common throughput; each is the sum and minimum value of throughput between a HAP and each wireless device, respectively. Likewise, two types of throughput maximization problems can be considered, sum throughput maximization and common throughput maximization. In this paper, we focus on the latter to propose a deep learning-based methodology for common throughput maximization by optimally placing a mobile HAP for WPCN. Our study implies that deep learning can be applied to optimize a complex function of common throughput maximization, which is a convex function or a combination of a few convex functions. The experimental results show that our approach provides better performance than mathematical methods for smaller maps.

scholarly journals WI-FI Access Point (WAP) OPTIMAL Placement in an Indoor Location

2021 ◽  
Vol 9 (9) ◽  
pp. 1084-1087
Author(s):  
Roohi Farheen
Keyword(s):  
Simulated Annealing ◽  
Data Communication ◽  
Access Point ◽  
Indoor Positioning ◽  
Optimal Number ◽  
Reference Points ◽  
Optimal Placement ◽  
Location Services ◽  
Access Points ◽  
Indoor Location

Abstract: The popularity of location based applications is undiminished today. They require accurate location information which is a challenging issue in indoor environments. Wireless technologies can help derive indoor positioning data. Especially, the WiFi technology is a promising candidate due to the existing and almost ubiquitous Wi-Fi infrastructure. The already deployed WiFi devices can also serve as reference points for localization eliminating the cost of setting up a dedicated system. However, the primary purpose of these Wi-Fi systems is data communication and not providing location services. This accuracy can be increased by carefully placing the Wi-Fi access points to cover the given territory properly. This method is based on simulated annealing which finds the optimal number and placement of Wi-Fi access points with regard to indoor positioning and investigate its performance in a real environment scenario via simulations. Keywords: Wi-fi access point (WAP), simulated annealing, router, wireless, placement, locationing.

1899: Percutaneous Nephrostolithotomy: Impact of Access Point Number and Location on Complications

2004 ◽  
Vol 171 (4S) ◽  
pp. 502-502 ◽  
Author(s):  
Brian R. Matlaga ◽  
Steve J. Hodges ◽  
Ojas Shah ◽  
Dean G. Assimos
Keyword(s):  
Access Point ◽  
Percutaneous Nephrostolithotomy ◽  
Point Number

Optimisation of Cardiac Resynchronisation Therapy with MultiPoint™ Pacing

2015 ◽  
Vol 4 (3) ◽  
pp. 3
Author(s):  
Antonio Curnis ◽  
David O’Donnell ◽  
Axel Kloppe ◽  
Žarko Calovic ◽  
◽  
...  
Keyword(s):  
Systolic Function ◽  
Biventricular Pacing ◽  
Heart Rhythm ◽  
Cardiac Resynchronisation Therapy ◽  
Left Ventricular ◽  
Optimal Placement ◽  
Jude Medical ◽  
Number Of Patients ◽  
Cardiac Resynchronisation ◽  
Resynchronisation Therapy

Cardiac resynchronisation therapy (CRT) using biventricular pacing is an established therapy for impairment of left ventricular (LV) systolic function in patients with heart failure (HF). Although technological advances have improved outcomes in patients undergoing biventricular pacing, the optimal placement of pacing leads remains challenging, and approximately one third of patients have no response to CRT. This may be due to patient selection and lead placement. Electrical mapping can greatly improve outcomes in CRT and increase the number of patients who derive benefit from the procedure. MultiPoint™ pacing (St Jude Medical, St Paul, MN, US) using a quadripolar lead increases the possibility of finding the best pacing site. In clinical studies, use of MultiPoint pacing in HF patients undergoing CRT has been associated with haemodynamic and clinical benefits compared with conventional biventricular pacing, and these benefits have been sustained at 12 months. This article describes the proceedings of a satellite symposium held at the European Heart Rhythm Association (EHRA) Europace conference held in Milan, Italy, in June 2015.

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