Wireless communications is the fastest growing segment of the communications industry. Everyone wants the quality of services anytime & anywhere. Wireless networks can integrate various heterogeneous radio access technologies as GSM, WLAN, Wimax etc. WiMAX is an IP based, wireless broadband access technology that provides performance similar to 802.11/Wi-Fi networks with the coverage and QOS (q...

The paper focuses on the real-world usage of IEEE 802.11 wireless network encryption and Wi-Fi Protected Setup (WPS) function. A brief history on the development of encryption methods and WPS is given. Wireless scanning of 802.11 networks in a capital city has been performed, and the results of it have been analysed. To ascertain the knowledge about the security of wireless networks of the aver...

Several emerging studies have focused on the pricing issue of bandwidth sharing between Wi-Fi and WiMAX networks; however, most either concentrate on the design of collaborated protocols or figure out the issue without the overall consideration of consumer preferences and contract design. In this study, we explore a wireless service market in which there are two wireless service providers opera...

This paper investigates & undertakes simulation based study of Adhoc Routing Protocols in Wi-Fi(802.11b) & WiMax(802.16e) Networks. In this paper comparison of four Routing Protocols AODV,DYMO,OLSR & IERP is done in a multicellular high mobility Wi-Fi & WiMax Networks using QualNet 5.0 Simulator. The metrics used for performance evaluation are Average Jitter, Throughput, End-to End delay, Signa...

With increasing number of wireless devices like laptops, Wi-Fi Web Cams, network extenders, etc., a new kind of problems appeared, mostly related to poor Wi-Fi throughput or communication problems. In this paper an investigation on wireless networks and it’s saturation in Vilnius City and its surrounding is presented, covering the main problems of wireless saturation and network load during day...

Networks LTE(4G) and Wi-Fi complementarity establish a heterogeneous system of wireless and mobile networks. We study and analyze the optimal performances of this heterogeneous system based on the bit rate, the blocking probability and user connection loss. Random Waypoint is the user mobility model. User’s provided mobile terminal equipped with multiple accesses interfaces. We have developed a...

One of the major’s contributions of Collaborative Wi-Fi Networks is to provide a widely distributed Wi-Fi access network in a low cost and ubiquitous way. In order to promote the participation of more actors (both Wi-Fi providers and users) and the success of this kind of emerging solutions is important to satisfy the expectations that the user has regarding the network and the services, increa...

Wardriving is searching for Wi-Fi wireless networks by moving vehicle. It involves using a car or truck and a Wi-Fi-equipped computer, such as a laptop or a PDA, to detect the networks. It was also known as 'WiLDing' (Wireless LAN Driving).Many wardrivers use GPS devices to measure the location of the network find and log it on a website. For better range, antennas are built or bought, and vary...

The design and deployment of Wi-Fi wireless networks is currently implemented in an ad-hoc fashion with access point installation based on “rules of thumb”. In order to design flexible in-door wireless communication systems, the development of planning software tools for automatic, site-specific design of Wi-Fi networks are required. These tools need to consider various criteria such as the opt...