A Method for Eliminating Abnormal Values of Received Signal Strength Indicator (RSSI) in WLAN
نویسندگان
چکیده
Received signal strength indicator plays a very important role in many WLAN applications. However wireless signal strength will be greatly affected by noise and disturbance. It is critical to remove the abnormal data in order to provide a reliable estimation of the received signal strength indicator. Conventional mean value based approaches require large amount of data which would lead to unreliable results for applications with small amount of data. This paper proposes a practical method of capturing the received signal strength indicator in WLAN, and gives the improved Grubbs rule for effectively eliminating abnormal value of measuring signal strength.
منابع مشابه
A Rssi Based Localization Algorithm for WSN Using a Mobile Anchor Node
Wireless sensor networks attracting a great deal of research interest. Accurate localization of sensor nodes is a strong requirement in a wide area of applications. In recent years, several techniques have been proposed for localization in wireless sensor networks. In this paper we present a localization scheme with using only one mobile anchor station and received signal strength indicator tec...
متن کاملUsing Calibration in RSSI- based Location Tracking System
This paper describes an enhancement method for location tracking system based on Received Signal Strength Indicator (RSSI)values and Extended Kalman Filter (EKF). The enhancement is based on pre calibration of measurement vectors and individual position block usage in final estimation of the target's position. The EKF and the described enhancement methods are used on a standard Wireless Local A...
متن کاملAdaptive Parameter Estimation Method for Wireless Localization Using RSSI Measurements
Location-based service (LBS) is becoming an important part of the information technology (IT) business. Localization is a core technology for LBS because LBS is based on the position of each device or user. In case of outdoor, GPS – which is used to determine the position of a moving user – is the dominant technology. As satellite signal cannot reach indoor, GPS cannot be used in indoor environ...
متن کاملMultiple Subcarrier Indoor Geolocation System in MIMO-OFDM WLAN APs Structure
This report aims to utilize existing and future Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing Wireless Local Area Network (MIMO-OFDM WLAN) systems characteristics—such as multiple subcarriers, multiple antennas, and channel estimation characteristics—for indoor location estimation systems based on the Direction of Arrival (DOA) and Radio Signal Strength Indication (R...
متن کاملMicrosoft Word - Kablan-Venice1.1final
This report aims to utilize existing and future Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing Wireless Local Area Network (MIMO-OFDM WLAN) systems characteristics—such as multiple subcarriers, multiple antennas, and channel estimation characteristics—for indoor location estimation systems based on the Direction of Arrival (DOA) and Radio Signal Strength Indication (R...
متن کامل