The research on Wi-Fi sensing has been thriving over the past decade but process not smooth. Three barriers always hamper research: 1) unknown baseband design and its influence; 2) inadequate hardware; 3) lack of versatile flexible measurement software. This article tries to eliminate these through following work. First, we present an in-depth study Qualcomm Atheros AR9300 (QCA9300) NIC....

Labs at Microsoft, test projects at the Edinburgh Festival in Scotland, and companies such as Quarterscope Solutions (www.quarterscope.com) are moving forward with projects that will bring real-time mapping and location data to portable-equipment users. Once they've gained market acceptance, these mobile products will be able to pick up signals from a few base stations and then triangulate to d...

Processing data and displaying numerical values are some of the most important engineering aspects. Microcontrollers, such as Arduino, are important tools for analyzing data wirelessly with the help of a Wi-Fi Shield. This paper will be focused on designing a simple Wi-Fi communication analyzer using Arduino microcontroller so that it interacts with Wi-Fi Shield and display numerical results of...

 Abstract—In today’s era position of any outdoor element can be determine precisely using GPS. But in the indoor environment like house, colleges, underground construction site GPS does not work well. As now-a-days all house and colleges are equipped with Wi-Fi access point, precise position can be found out using Wi-Fi using method name Received Signal Strength Indicator (RSSI). A series of e...

We report the GMRT detection of associated HI 21 cm-line absorption in the z=1.1946 red quasar 3C 190. Most of the absorption is blue-shifted with respect to the systemic redshift. The absorption, at ∼ 647.7 MHz, is broad and complex, spanning a velocity width of ∼ 600 kms. Since the core is self-absorbed at this frequency, the absorption is most likely towards the hotspots. Comparison of the r...

Introduction: Cassini ISS imaged the surface of Io in eclipse by Jupiter in late 2000 and early 2001 and obtained multiple-filter images over timescales of hours. Images like these have been used to study the temperature and variability of the numerous hotspots on the surface [1, 2, 3]. For example, Pele was found to be an active lava lake with most likely basaltic lava composition [2]. New Hor...

Wi-Fi is becoming widely popular network interface for data communication in smart phones because of its high throughput, power efficiency and relatively large range. However, the Wi-Fi network still several inefficiencies in terms of high energy consumption, unfairness between co-located nodes, and bandwidth poor utilization. For example, Wi-Fi transmitter has to transmit the full packet even ...