NetArgus: An SNMP Monitor &amp;#x00026; Wi-Fi Positioning, 3-tier Application Suite

Violettas, George E.; Theodorou, Tryfon; Georgiadis, Christos K.

doi:10.1109/icwmc.2009.64

Cited by 11 publications

(6 citation statements)

References 7 publications

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“…Most important, there were several samples taken indicating positions completely outside the area drawn on the map. These are the result of the weaknesses of the system described at (Violettas et al, 2009) plus the high noise of the surrounding area.…”

Section: Kalman Filter Appliance Results and Comparison Chartsmentioning

confidence: 99%

“…It reads information from the moving client (with the NetArgus application installed) and by using the triangulation algorithm described in (G.E. Violettas et al, 2009)., computes the absolute position of the above client, storing that information into the server database.…”

Section: Netargus Client Server Viewermentioning

confidence: 99%

“…This paper is an extended-updated and improved version of (Violettas et al, 2009). The aim of the essay was to use the Wi-Fi available information for finding the position of a station.…”

Section: Introductionmentioning

confidence: 99%

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Improved NetArgus - A Suite of Wi-fi Positioning & SNMP Monitor

Theodorou¹,

Violettas²,

Polychroniadou³

et al. 2012

Proceedings of the International Conference on Signal Processing and Multimedia Applications and Wireless Information Networks

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In this paper, field research was conducted in order to enrich and strengthen the "NetArgus" application that is able to monitor either a wired or a wireless network with all its possible aspects. Original algorithms were implemented in an effort to find the position of a moving station utilizing the signal level of wireless local area network (WLAN) devices. Exhausting sampling and research were done, in order to resolve various practical problems associated with the signal level of the wireless stations as well as the involved hardware. Various flaws and omissions of 802.11x protocols were discovered, such as the lack of definition of the signal level and its width range. Moreover, a plethora of positioning practical problems has been adequately managed. Hence, an application was constructed to draw paths and manipulate proper information from various network moving clients, using the Simple Network Management Protocol (SNMP) as well as low level operating system libraries. Last but not least, "Kalman Filter" was implemented and fully tested in order to correct the positioning unavoidable mistakes. 2 RELATED WORK The systems introduced to find the location of a moving target are called Real Time Location System (RTLS). Cisco (CISC Systems, 2006) has

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Section: Kalman Filter Appliance Results and Comparison Chartsmentioning

confidence: 99%

Section: Netargus Client Server Viewermentioning

confidence: 99%

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Improved NetArgus - A Suite of Wi-fi Positioning & SNMP Monitor

Theodorou¹,

Violettas²,

Polychroniadou³

et al. 2012

Proceedings of the International Conference on Signal Processing and Multimedia Applications and Wireless Information Networks

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“…The system is intended for multi-floored structures and thus height in the Free Space Path Loss (FSPL) [7] formula plays a good role in deciding the μ at that floor. FSPL calculates 1: procedure SCANNER 2:…”

Section: Process Of Interpreting the Collected Datamentioning

confidence: 99%

Hybrid approach to distributed Wi-Fi performance assessment for multi-floor structures

Bhardwaj

Kataoka

Vikram

et al. 2015

2015 9th International Conference on Software, Knowledge, Information Management and Applications (SKIMA)

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This paper proposes the enhancement of Wi-Fi quality assessment with a hybrid approach, which uses small and low-cost devices like Raspberry Pi, and mobile devices like smart-phones. Existing solutions for Wi-Fi quality assessment are expensive, and guarantee for continuous monitoring is not given. A monitoring device like a spectrum analyzer, needs the user to follow a specified path to cover entire geographical Wi-Fi coverage, for each Wi-Fi quality assessment procedure with the limited number of such monitoring devices. This paper introduces several engineering approaches, including mixture of Raspberry Pi and mobile phones as sensing devices. Taking the advantage of low cost Raspberry Pis and readily available mobile devices, we collect real-world multi-floored building data for WiFi performance information from user's perspective and visualize it as a geographical Wi-Fi signal strength heat map, as well as a geographical end-user network experience. We analyze the result of field trials to understand how small, low-cost devices may contribute as an alternative and efficient solution of Wi-Fi quality assessment.

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“…Free-space path loss formula (FSPL) [10] which is basically the loss in signal strength when it travel through free space (usually air). For free propagation waves in radio channel, the FSPL model is given as following.…”

Section: Estimation Of Wi-fi Signal Qualitymentioning

confidence: 99%

Wi-Pi

Bhardwaj

Kataoka

Kumar

2014

Proceedings of the AINTEC 2014 on Asian Internet Engineering Conference - AINTEC '14

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This paper proposes "Wi-Pi" that enables low-cost and distributed assessment of Wi-Fi performance in an enterprise network. The cost of assessment of Wi-Fi signal quality is still expensive and its continuity of the monitoring is not guaranteed. The number of monitoring devices such as spectrum analyzer is limited, and they will not stay at one place to monitor the entire Wi-Fi coverage under geographically distributed deployment. Monitoring feature of Wi-Fi signal at production-level access points does not reflect the actual situation of clients. Wi-Pi is a low-cost and stationary solution that distributes multiple Raspberry Pis in an enterprise network for monitoring Wi-Fi signal quality and network performance such as packet loss and latency. Taking the advantage of reasonable cost of Raspberry Pi, Wi-Pi collects client-side Wi-Fi performance information and visualizes it as a geographical heat map. Prototype implementation of Wi-Pi has been deployed to cover a small part of the campus network in Indian Institute of Technology Hyderabad. The aim of this paper is to make Wi-Fi monitoring to be low-cost, open source and deployable.

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NetArgus: An SNMP Monitor & Wi-Fi Positioning, 3-tier Application Suite

Cited by 11 publications

References 7 publications

Improved NetArgus - A Suite of Wi-fi Positioning & SNMP Monitor

Improved NetArgus - A Suite of Wi-fi Positioning & SNMP Monitor

Hybrid approach to distributed Wi-Fi performance assessment for multi-floor structures

Wi-Pi

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