New wireless technologies such as WiMAX, NFC and ZigBee are rapidly being adopted, along with existing wireless standards such as Bluetooth, Wi-Fi, GSM and other cellular technologies. Bluetooth and Wi-Fi have already become notorious for severe security shortcomings during their relatively brief existence. New vulnerabilities and exploits are reported and demonstrated every week on live public...

Over the past few years, wireless networks and wireless Internet have become ever increasingly popular, and with it, many security issues have arisen. An important topic is the security of wireless networks. This report investigates two possible solutions, Wired Equivalent Privacy (WEP) and Wi-Fi Protected Access (WPA). Both of these solutions can protect wireless communications from eavesdropp...

This white paper addresses the RF interference challenges that result from high usage of a shared spectrum. With the introduction of the IEEE’s latest wireless standard, 802.11ac, with its 80-MHz-wide channel bandwidth, these challenges become more acute. It explores the limitations of standard Wi-Fi chip design and how this affects the ability of an IT organization to gather critical, actionab...

The article proposes an algorithm for controlling the electromagnetic environment in a Wi-Fi WLAN using fuzzy logic methods. A power management system access points has been developed, deployed segment based on existing equipment. use of compatibility control high-density networks can significantly improve bandwidth wireless segment.

ABSTRACT-Wireless Local Area Network (WLAN) that uses the IEEE 802.11 standard and WiMAX (Worldwide Interoperability for Microwave Access) that uses the IEEE 802.16 standard are networks that we are want to explore. description of the existing wireless technology Wi-Fi and WiMAX, and try to compare Wi-Fi (IEEE 802.11) and WiMAX (IEEE 802.16). Wireless Local Area Network (WLAN) uses of IEEE 802....

This paper addresses the problem of network monitoring by proposing an Artificial Immune System (AIS) system to achieve situation recognition and monitoring in a large network of Wi-Fi hotspots as part of a highly scalable preemptive monitoring tool for wireless networks. Using a set of data extracted from a live network of Wi-Fi hotspots managed by an ISP, we integrated an AIS algorithm into a...

Visible light communication (VLC) has largeunlicensed bandwidth, enables communication in radio frequency (RF) responsive environments, understand energy-efficient data transmission, and has the potential to increase the capacity of wireless access networks . On the other hand, WiFi provides more coverage than VLC. In order to take the advantages of both WiFi and VLC, we studied hybrid WiFi-VLC...

Multiple Access Control (MAC) protocols play a vital role in determining the performance of wireless local area networks (WLANs). With developments at the physical layer, new MAC protocols are required to make efficient use of the bandwidth available. Newly conceived applications for these technologies, and the ever-increasing demands that they place on the MAC protocols, also requires constant...

WiMAX: An analysis of the existing technology and compare with the cellular networks. Abstract Broadband access technology has significant influences in the telecommunication industry. Worldwide interoperability for microwave access (WiMAX) is a broadband wireless technology which brings broadband experience to a wireless context. There are two different types of broadband wireless services. On...

Wi-Fi based hotspots are used to provide broadband Internet service in airports, campuses, remote areas and others. They are time consuming and expensive to setup as they require substantial wired infrastructure to access the backhaul network and they also suffer from the last mile wireless connectivity problem. Wireless Mesh Networks (WMN) provide an alternative in the form of wireless backhau...