We investigate the performance and coexistence techniques for worldwide interoperability for microwave access (WiMAX) delivered from high altitude platforms (HAPs) and terrestrial systems in shared 3.5 GHz frequency bands. The paper shows that it is possible to provide WiMAX services from individual HAP systems. The coexistence performance is evaluated by appropriate choice of parameters, which...

Voice over IP (VoIP) applications such as Skype, Google Talk, and FaceTime are promising technologies for providing low cost voice calls to customers over the existing data networks. Wireless networks such as Wi-Fi and WiMAX focus on delivering Quality of Service (QoS) for VoIP applications. However, there are numerous aspects that affect quality of voice connections over wireless networks. In ...

This work aims the implementation and analysis of an environment formed by WiMAX and MetroEthernet networks. WiMAX offers unwired broadband access with high capacity of data transmission for dispersed areas. This network allows the interconnection of MetroEthernet networks with connection up to 10Gbps. The study herein presented deals with a proposal of an end-to-end Quality of Service (QoS sui...

<p>The implementations of the microstrip patch antenna for wireless local area network (WLAN) and worldwide interoperability microwave access (WiMAX) are analysed in literature this research. Dual or multiband has played a significant part meeting expectations service quickly developing world communication. Basically, transitory guide, an is device that emits absorbs radio waves. Numerous...

In this article, a novel frequency slot-based switchable antenna fabricated on flexible and nonflexible materials is presented for suitable reconfigurable radiations of Bluetooth, WiMAX, upper WLAN applications. Initially, the performance structure was simulated using CSTTM simulator evaluated experimentally FR4 structure. The same implemented (jean) substrate with relative permittivity 1.7. pr...

Due to the size constraint, antennas with compact are required that can support multibands single radiating element. Dielectric resonator antenna (DRA) multiple modes good efficiency and gain using In this paper, a quad-band DRA is proposed for WLAN/WiMAX bands CPW feed. Out of four bands, WLAN (2.37-2.55) GHz, (5.15-5.35) (5.6-5.83) GHz achieved by excitation fundamental higher-order whereas W...

a new multiple c- slotted microstrip patch antenna is proposed.  a patch antenna is a wide-beam narrowband antenna. microstrip patch antenna consist of a very thin metallic strip (patch) placed a small fraction of a wavelength above a ground plane. the patch can be designed in any possible shape and normally made by conducting material copper or gold. this paper presents design of a c- slotted ...

In this paper, the design and performance analysis of an Inkjet-printed metamaterial loaded monopole antenna is presented for wireless local area network (WLAN) worldwide interoperability microwave access (WiMAX) applications. The proposed structure consists two layers, one rectangular tuning fork-shaped antenna, another layer inkjet-printed superstate. designed using four split-ring resonators...

Deployment Video on Demand (VoD) over the next generation (WiMAX) has become one of the intense interest subjects in the research these days, and is expected to be the main revenue generators in the near future. In this paper, the performance of Quilty of Service of video streaming (IPTV) over fixed mobile WiMax network is investigated under different terrain environments, namely Free Space, Ou...

The demands for high speed applications are growing at a faster rate. To meet theserequirements, 4G technologies are being used nowadays. COFDM based WiMax is the outcome in this direction which promises to cater these high speed and high quality applications. Worldwide Interoperability for Microwave Access (WiMax) is an IEEE 802.16 standard-based broadband wireless access (BWA) technology whic...