This technique is based on sampling and recording radio signal behaviour patterns in specific areas. Commercial solutions usually base the signature on RSSI but it can also use ToA, AoA and TDoA based RF signatures. Deployment of these systems is based on 2 phases: Calibration phase A walk around is done with a mobile device … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 6 : Location Tracking Techniques – Pattern Recognition
Angulation (Angle-Based) Techniques Localization is based on the angle of the received signal. Angle of Arrival (AoA) / Direction of Arrival (DoA) AoA determines the angle of Incidence at which signals arrive at the receiving sensor. This angle is used to estimate the location of the device using the intersection of the two lines of … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 5 : Location Tracking Techniques – Angulation (AoA / DoA)
Received Signal Strength (RSS) Localization is based on the received signal strength. The RSS is measured either by the mobile device or by the receiving sensor. The following information is needed to calculate the distance between the sensor and the device: Transmitter output power Cable losses Antenna gain Path loss model(PL) A common PL model … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 4 : Location Tracking Techniques – Lateration (RSS)
Distance-Based (Lateration) Techniques The tracking position is determined based on distance. The distance can be measured in three different ways: Using Time of Arrival (ToA) Using Time Difference of Arrival (TDoA) Using Received Signal Strength In ToA and TDoA, localization is based on propagation time, whereas for RSS systems, propagation is based on signal strength. … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 3 : Location Tracking Techniques – Lateration (ToA and TDoA)
Tracking systems are classified by the measurement technique that they use. Real Time Location Systems (RTLS) are grouped into the following: Cell of Origin ( Nearest Cell) Lateration ( depending on Distance) Angulation (depending on the angle) Location patterning ( pattern recognition) Cell of Origin The tracking position is based on proximity and is determined … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 2 : Location Tracking Techniques – Cell of Origin
Advantages of Location-based services. Location-based services helps us to: Effectively locate assets and personnel. Improve productivity by locating effectively. Reduce unauthorized removal of assets and, thus, helps reduce losses. Improve customer satisfaction Improve WLAN planning and tuning Coordinate device location with Security policy enforcement Determine rogue device location Monitor health and status of key assets. … Continue reading CCNP Wireless 642-747 IUWMS Summary Notes 1 : Introduction to Location-Based Services
Happy New Year and thank you for sticking with me thus far ! In this post, I will share my CUWSS experience. I finished studying for my CUWSS Exam in the beginning of December and booked my again for around December the 15th. My first attempt to give the exam was unsuccessful :(. To be honest, … Continue reading Passed CCNP CUWSS Wireless Exam, moving on to CCNP IUWMS Wireless.