Self-organized networks might be a disruptive technology in the mobile telecommunication industry, posing a credible threat to the current network operators' dominance of mobile applications and services. Indeed, with the emergence of wireless broadband networks based on clusters of Wireless Local Area Network (WLAN) hotspots, self-organized networks might become an important alternative to UMT...

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...

SUMMARY The Finite-Difference Time-Domain (FDTD) technique is presented in this paper as an estimation method for radio propagation prediction in large and complex wireless local area network (WLAN) environments. Its validity is shown by comparing measurements and Ray-trace method with FDTD data. The 2GHz (802.lIb/g) and 5GHz (802.lIa) frequency bands are used in both the calculations and exper...

Wireless network is widely used in many sectors due to ease of installation, flexibility, mobility, reduced cost-of-ownership, and scalability. WiFi network can be accessed with laptops, mobile phones, cameras, game consoles and many other increasing numbers of consumer electronic gadgets. Wireless Local Area Network (WLAN) technology has changed the way people communicate and share information...

Voice IP (VoIP) over wireless local area network (WLAN) is a topic of great interest in the research arena. To investigate what are the performance limitations in establishing VoIP calls over WLAN networks we performed some simulations. We show in this paper these simulation results in ad-hoc and infrastructure WLAN networks, working under ideal and real conditions. Measures and graphs of packe...

Wireless local area networks (WLAN) and General Packet Ratio Service (GPRS) networks are two of the most widely used wireless network systems. In this paper, we propose a mobility support for mobile host roaming between WLAN and GPRS networks. In addition, a handoff decision model is presented to reduce the latency of the handoff procedure. The experimental results, including throughput, packet...

An important issue in the widespread deployment of infrastructure based wireless local area networks (WLANs) is the network design. In this paper, we propose a new WLAN design approach that focuses on assuring sufficient data rate capacity to meet expected user demand in the coverage area, while still satisfying signal coverage and interference level requirements. Noting the low cost of WLAN ac...

...................................................................................................................v Publications Arising from the Thesis .................................................................... vii List of Figures and Tables .................................................................................... xiii Glossary of Acronyms and Abbreviations .................

This paper is devoted to analyze an improvement in the performance of WLAN (Wireless Local Area Network) systems introduced by space and space-time diversity, as well as spatial multiplexing. These MIMO (Multiple-Input MultipleOutput) techniques are approved in the latest 802.11n specification. In order to perform the experiment, a Matlab application that simulates WLAN physical layer has been ...

ABSTRACT-Wireless Local Area Network (WLAN) that uses the IEEE 802.11 standard and WiMAX (Worldwide Interoperability for Microwave Access) that uses the IEEE 802.16 standard are networks that we are want to explore. description of the existing wireless technology Wi-Fi and WiMAX, and try to compare Wi-Fi (IEEE 802.11) and WiMAX (IEEE 802.16). Wireless Local Area Network (WLAN) uses of IEEE 802....