Mobile ad-hoc networking with wireless LAN infrastructure can be employed to build inter-vehicle communication based applications. The associated high velocities and hostile driving environments pose a challenge to the performance of a wireless LAN. This paper assesses the performance of a wireless Local Area Network in different vehicular traffic and mobility scenarios. The network throughput ...

Wireless technology has become an important module for communication and for the data transmission. This technology has replaced the present LAN in terms of security and as well as with the data transfer. Wireless Local Area Network (WLAN) effectively satisfies needs within buildings and campus environments. Developing security measures for the WLAN is a major issue when compared to the securit...

ireless local area networks (WLANs) small enough for portable computing devices have transmission rates up to a few Mbps, the lower end of rates obtained in IEEE 802-compliant wired LANs. WLANs can provide a useful service when the application demands and number of users are low. Accommodating more users and multimedia traffic requires much higher performance, from several tens of Mbps to over ...

In a wireless LAN (WLAN) based on IEEE 802.11, supporting multiple classes of services with QoS constraints in MAC layer is very important. In this paper, we propose a class-based analytical model to support multiple traffic classes. Through investigating the relationship between access control parameters, such as contention window (CW) sizes and inter-frame space (IFS) under QoS constraints, w...

Wireless LAN is currently enjoying rapid deployment in University departments, business offices, hospitals and homes. It becomes an inexpensive technology and allows multiple numbers of the households to simultaneously access the internet while roaming about the house. In the present work , the design and development of a wireless LAN is highlighted which utilizes direct sequence spread spectru...

IEEE 802.11 wireless LAN (WLAN) is the most widely used WLAN standard today, but it cannot provide QoS support for the increasing number of multimedia applications. Thus, a large number of 802.11 QoS enhancement schemes have been proposed, each one is focusing on a particular mode. This work summarizes all these schemes and presents current research activities. We are proposing in this work to ...

The paper describes a new wireless LAN being developed in the 17Ghz band: the WIND-FLEX system. A brief but complete review of the hardware in its IF and RF sections is presented. Both design and development influences have been treated, and, among others, oscillators, amplifiers and antennas are presented. Also MAC and DLC protocols are described with respect to their functionalities and the i...