Modern Wireless Local Area Networks (WLANs) with relatively high data rates have become an attractive technology for providing Internet connectivity for mobile users. Ad-hoc networks are a collection of mobile nodes that can be deployed without the need for any centralized management infrastructure. In such a set-up, to establish the required communication paths, each node must be willing to ac...

The aim of this paper is to give an overview of traffic seen in Internet and what kind of models can be used to describe it. The traffic in Internet is an aggregate of traffic from many local area networks (LAN). Measurement results strongly suggest that the traffic is self-similar with huge variation of timescales, from order of milliseconds to even days. This report is based mostly on ten art...

Instant messaging software, as a convenient network communication tool, is becoming more and more popular. At the same time, it also brings risks in security of local area network (LAN). Through studying in typical instant messaging software and detected by the combination of misuse detection and protocol analysis, an architecture of detecting and blocking mechanism of instant messaging softwar...

Foreword: The Public Safety Wireless Network (PSWN) Program is conducting an ongoing assessment of advancements in the wireless communications industry. The scope of this assessment is to identify emerging wireless services and technologies for potential public safety use in the near future and beyond. This document is the third in a series of studies on emerging wireless technologies. This par...

The use of Voice over Wireless Local Area Network is seeing a meteoric rise in popularity as result its simplicity, non-intrusiveness, and cheap cost implementation, well low maintenance, universal coverage, fundamental roaming capabilities. Nevertheless, deploying Internet Protocol (VoIP) (WLAN) challenging task for many network managers, architects, planners, designers, engineers. Because thi...

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...