GSM location triangulation algorithm

Assuming I have a Fingerprint DB of GSM Cell towers.

The data (including Longitude & Latitude, CellID, signal strength, etc) is achieved by 'wardriving'. in a way, similar to OpenCellID.org.

I would like to be able to get the location of the client mobile phone, without using GPS.

This is similar to OpenCellID / Skyhook Wireless/ Google's 'MyLocation', which sends the server info on the Cell towers it "sees" at the moment: the Cell tower connected to, and another 6 neighboring cell towers (assuming GSM).

The location calculation will be done on the server and not on the client mobile phone. the phone's single job is to send via HTTP/GPRS, the GSM tower it's currently connected to, plus other neighboring cell towers it currently 'sees'.

Basic triangulation is not good enough.

IMPORTANT NOTE: There is no software required!

What is required is a practical algorithm, using C, C# and/or SQL server 2008 spatial capabilities.

If you plan on bidding please describe the location calculation method.

Example: (Pseudocode)

Function_GetLocation(ConnectedCellTowerID, ConnectedCellTowerStrength, Neighbor1CellTowerID, Neighbor1CellTowerStrength, Neighbor2CellTowerID, Neighbor2CellTowerStrength, Neighbor3CellTowerID, Neighbor3CellTowerStrength, ETC... until Neighbor6CellTower)


Access DB, do some magic, and return Longitude & Latitude


Compétences : .NET, Programmation C#, Programmation C++, Géolocalisation, SQL

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Concernant l'employeur :
( 0 commentaires ) India

Nº du projet : #12628936

7 freelance font une offre moyenne de $165 pour ce travail


I am very proficient in c and c++. I have 16 years c++ developing experience now, and have worked for more than 6 years. My work is online game developing, and mainly focus on server side, using c++ under linux environ Plus

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Hi there! I noticed your project at the last moment, so I have no time for the pseudocode. I am bidding because I did a project once with the exact same goal as [url removed, login to view] I need 2 days to go into my archive and chec Plus

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Dear Client, Thanks for providing us opportunity to place bid over the project and communicate with [url removed, login to view] mainly deal in web development, SEO, Android App, software testing and graphic design. Our vision is to b Plus

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