نتایج جستجو برای: wifi protocol
تعداد نتایج: 252714 فیلتر نتایج به سال:
Always on Internet service has become norm and people are able to enjoy anytime, anywhere broadband wireless communication services. With the emergence of smart phone and tablet, wireless network traffic has increased exponentially. Wireless network traffic is expected to continuously increase dramatically as more and more communication capable multimedia devices are expected to be connected to...
WiFi is widely implemented in campus wide including administrative, teaching and student’s accommodation. Wireless communications are associated with interconnect devices which includes cellular networks, infrared, bluetooth and WiFi enabled devices. It involves mobility and freedom of assessing information anytime and anywhere. A study on WiFi networks in a campus environment is presented in t...
Hardware variance can significantly degrade the positional accuracy of RSS-based WiFi localization systems. Although manual adjustment can reduce positional error, this solution is not scalable as the number of new WiFi devices increases. We propose an unsupervised learning method to automatically solve the hardware variance problem in WiFi localization. This method was designed and implemented...
The use of Unmanned Aerial Vehicles (UAV) in every field is increasing rapidly. In order for UAVs to perform their duties correctly, they must be able maintain continuous communication with ground stations. WiFi wireless protocol has increased due its high bandwidth. One the most important threats that can threaten this type Denial Service (DoS) attacks. event such an attack, UAV becomes inacce...
Wireless Multimedia Sensor Networks (WMSNs) are composed of small devices that are able to capture video or audio information and to transmit it over wireless channels. The development of wireless technologies, such as: WiFi, Bluetooth, Zigbee, and UWB, encourages the emergence of heterogeneous networks. However, only a few existing solutions take into account the constraints of multi-tier and ...
WiFi networks have enjoyed an amazing penetration rate in recent years. However, due to the limited coverage, existing WiFi infrastructure only provides interrupted connectivity for mobile users. Once leaving the current network coverage, WiFi clients must actively discover new WiFi access points (APs), which wastes the precious energy of mobile devices. Although several solutions have been pro...
WiFi positioning plays an increasingly important role in improving performance because good positioning can improve performance in indoor environments without additional devices. It will make use of existing WiFi infrastructure, although this was never designed to do so. Methods that were used for other positioning technologies can be adopted for WiFi. Whether or not these other methods work wi...
The paper presents an outline of the development of WiFi field monitoring maps using the Internet-of-Things (IoT) technology. The negative impacts of signals generated by the WiFi access points on health and measurement metrics are discussed. The experimental system for collecting WiFi signal data is presented. Finally, the construction of WiFi signal strength heatmap is discussed and some prel...
Femtocells and WiFi are often presented as opposing technologies. The reality is that both have a vital role to play in supporting future mobile traffic growth. In many cases both technologies will eventually be employed in a single box with access via an intelligent mobile deviee that will automatically select the best option. Deploying Femtocells in WiFi hotspots would let access providers ad...
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