WiMAX is the next generation technology that offers broadband wireless access over long distances. As WiMAX standards expand from considering a fixed line-of-sight propagation and point-to-multipoint infrastructure high frequency system to a lower frequency non-line-of-sight mobile system, WiMAX is open to more security threats than other wireless systems. This paper presents the different secu...

This paper investigates the suitability of WiMAX/ IEEE-802.16 – based broadband wireless access (BWA) technologies for telemedicine services. Beginning with a brief review of Wireless communication technologies for health and comparison of the basic features of Wi-Fi and WiMAX broadband access technologies, performance of WiMAX physical layer has been evaluated for médical image transmission in...

In the recent years, the web and VoIP services has motivated the development of new broadband access technologies due to the increased demands for faster connection [12]. For the upcoming generation, IEEE 802.16 standard, WiMAX (Worldwide Interoperability for Microwave Access Forum) has become the most potential wireless access technology. WiMAX uses a common MAC protocol to incorporate the set...

Wireless telemedicine, also referred to as mobile health, which capitalizes on advances of wireless technologies to deliver health care and exchange medical knowledge anywhere and any time, overcomes most of geographical, temporal, and even organizational barriers to facilitate remote diagnosis and monitoring, and transfer of medical data and records. In this article we investigate the applicat...

Horizontal developments in communication systems have led to the emergence of new wireless technologies like WiMAX, 3G and 4G. These expansions can provide new opportunities for further advances and exciting applications in particular if we can integrate different technology standards into heterogeneous wireless networks. WiMAX and WiFi wireless networks are two examples of different standard t...

IEEE 802.16e WIMAX (Worldwide interoperable Microwave Access) is the upcoming wireless system which can offer high speed voice, video and data service up to the customer end..It offers both LOS&N-LOS wireless communication. By using WIMAX Technology we can overcome the limitation of short coverage area, lack of security and low data rate. The aim of this paper is the performance evaluation of a...

The WIMAX technology based on air interface standard 802-16 wireless MAN is configured in the same way as a traditional cellular network with base stations using point to multipoint architecture to drive a service over a radius up to several kilometers. The range and the Non Line of Sight (NLOS) ability of WIMAX make the system very attractive for users, but there will be slightly higher BER at...

Mobile worldwide interoperability for microwave access (Mobile WiMAX) based on IEEE 802.16e is a standard designed for metropolitan area networks (MAN) that cover an area wider than that covered by local area networks. Commercial WiMAX services are already available in some countries and regions. Services in Japan are scheduled to start in 2009. Mobile WiMAX supports “one-cell frequency reuse,”...

The main objectives of this paper is to examine the performance of the wireless broadband infrastructures and their support for Triple Play services under different separated scenarios by using OPNET Modeler 14.5. This simulation network uses several features to study the performances of WiMax on Triple Play services, 3.5GHz band is chosen in our studies because it is widely used band all over ...

Worldwide Interoperability for Microwave Access (WiMAX) specified by IEEE 802.16 supports Wireless Metropolitan Area Network (WMAN). In the environment of WMAN the mobile client has high mobility as it moves from the coverage area of Serving Base Station (SBS) to Target Base Station (TBS). Handoff is one of the Quality of Service (QoS) parameter in the WiMAX network which supports mobility and ...