One of the challenges of the communication industry today is wireless data transfer with great speed. If the traditional Wireless Local Area Network (WLAN) is the leader for indoor usage (coverage and mobility on short distance), the mobile WiMAX is planned to be the adequate solution for the outdoor (when the user exist the hotspots coverage area). In this paper we propose a solution, based on...

Wireless Networking is one of the fastest growing areas in the network industry today. Wireless Local Area Networks (WLANs) are gaining special interest as they provide flexibility of location along with low infrastructural and maintenance costs. The hidden terminal problem is unique to wireless networks that decrease the performance of the network. In this paper we propose a new MAC protocol t...

Wireless Local Area Networks (WLANs) are widely used for cable replacement and wireless Internet access. Since the medium access control (MAC) scheme of WLANs has a strong influence on network performance, it should be accounted for in WLAN design. This paper presents AP location models that optimize a network performance measure specific for the MAC scheme of WLANs, which represents the effici...

This paper presents a tutorial for network multipleinput and multiple-output (netMIMO) in wireless local area networks (WLAN). Wireless traffic demand is growing exponentially. NetMIMO allows access points (APs) in a WLAN to cooperate in their transmissions as if the APs form a single virtual MIMO node. NetMIMO can significantly increase network capacity by reducing interferences and contention...

IEEE 802.11 Distributed Coordination Function (DCF) guarantees fair transmission opportunity to stations. Channel occupation of low rate stations in IEEE 802.11 Wireless Local Area Network (WLAN) causes the performance anomaly resulting in the degradation of overall network throughput. Using cooperative communications between a high rate station and a low rate station, performance anomaly can b...

VoIP over wireless local area network (WLAN) is an important application of WLAN and gaining more and more attention recently. In this paper, we analyze the maximum number of VoIP calls in WLAN and propose a new call admission control strategy, namely, adaptive transmitting interval call admission control (ATICAC) to enhance VoIP calls in 802.11 WLANs. In ATICAC strategy, Base Station (BS) adap...

This article describes the identification protocol on a hybrid Wireless Local Area Network (WLAN) with mobile and fixed stations. Our objective is to add decision elements to optimize the routing in such a system. Our protocol is based on the use of distributed reception tables in mobile stations. This protocol has been developed in Java.

A Tri-Band I slotted rectangular patch microstrip antenna is presented in this paper .The antenna resonates at1.43 GHz, 5.16 GHz and 7.60 GHz frequencies. The antenna is fed with coaxial feed giving band widths of 10.52%, 7.20% & 30.83% for VSWR values less than 1.14.Theproposed antenna can be used for WLAN (Wireless Local Area Network) applications.

Cheap and available wireless devices are commonly used at our home and in institutions. Wireless local area networks (WLAN), new type of networks set us free from problems of changing wall socket location. That kind of LANs makes access to the Internet more comfortable. We do not have to drill holes in walls and put cables to connect another workstation to the existing network. To avoid such pr...

This paper looks at infrastructure security for future mobile communications. The technology considered is Third Generation Partnership Project (3GPP) based mobile network with Internet Protocol (IP) stack and its interworking with Wireless Local Area Network (WLAN). Infrastructure security definition and requirements for a Mobile Network Operator (MNO) are presented in the paper and extent of ...