The MAC (Medium Access Control) protocols can be roughly categorized into three broad classes [16]. The fixed assignment set will have schemes like TDMA, CDMA and FDMA. These protocols lack the flexibility in allocating resources and thus have problems with configuration changes. This makes them unsuitable for dynamic and bursty wireless packet data networks. The random assignment class consist...

Wireless LANs provide mobility. Who does not want to be able to carry their laptop to the conference room down the hall and still have complete network access without worrying about network cables? Manufacturing companies are even using wireless LANs (WLANs) to monitor shop-floor machinery that is not traditionally accessible by network cabling. Increased mobility and accessibility improves com...

Wireless LAN technology is becoming increasingly popular for a wide variety of applications. After evaluating the technology, most users are convinced of its reliability, satisfied with its performance and are ready to use it for large-scale and complex wireless networks. Originally designed for indoor office applications, today's Wireless LANs can be used for both indoor peer-to-peer networks ...

A simulation model is presented to analyze and evaluate the performance of VoIP based integrated wireless LAN/WAN with taking into account various voice encoding schemes. The network model was simulated using OPNET Modeler software. Different parameters that indicate the QoS like MOS, jitter, end to end delay, traffic send and traffic received are calculated and analyzed in Wireless LAN/WAN sce...

Q: What is a Wireless LAN (WLAN)? Q: What are the benefits of using a WLAN instead of a wired network connection? Q: Are Intel WLAN products interoperable with other product brands? Q: What is Wi-Fi*? Q: What is IEEE 802.11b, 802.11g, and 802.11a? Q: What is the transmission range of WLAN products? Q: What data rates are available with a WLAN network connection? Q: What is an Access Point? Q: W...

The type of the applications for which Internet is being used has changed over the years. Multimedia applications, Real-time applications and Game playing require Quality of service. IEEE has proposed IEEE 802.11e, a quality of service extension to the wireless LAN standard IEEE 802.11. In this paper service differentiation ability of 802.11e is evaluated. Identical traffic is considered for al...

With the rapid increase in demand for mobile data, mobile network operators are trying to expand wireless network capacity by deploying wireless local area network (LAN) hotspots on which they can offload their mobile traffic. However, these network-centric methods usually do not fulfill the interests of mobile users (MUs). Taking into consideration many issues, MUs should be able to decide whe...

---------------------------------------------ABSTRACT---------------------------------------------Wireless LAN is the most commonly used everywhere nowadays. Wireless LAN is commonly used only because it is easy to use and maintain. We can access it easily ad work effectively with it. But because of higher availability of wireless LAN means its increased attacks, errors and challenges for any o...

There is a growing interest for VoWLAN (Voice over Wireless LAN) services in the advent of network convergence and user mobility. As we design a VoWLAN system capable of handling both intraand inter-handover real-time data, we should likewise consider its security architecture as compared to WLAN (Wireless LAN) systems. In this paper, we propose a method for VoWLAN that would provide handover a...

A simulation model is presented to analyze and evaluate the performance of VoIP based integrated wireless LAN/WAN with taking into account various voice encoding schemes. The network model was simulated using OPNET Modeler software. Different parameters that indicate the QoS like MOS, jitter, end to end delay, traffic send and traffic received are calculated and analyzed in Wireless LAN/WAN sce...