From a technical point of view, Mobile WiMAX may offer an appropriate solution for delivering broadband wireless access. Two remaining questions, however, are whether the rollout of a WiMAX network is economically feasible or not, and how technical improvements like MIMO, beamforming and turbo-coding can influence the business case. In this paper different technical scenarios for a Mobile WiMAX...

Scientists have explored that WiMAX has the potential to enhance the performance of the radar networks. With the idea of implementing MIMO (multi-input multi-output) communication technology for overcoming the challenges offered by hostile channel and environmental effects.It leads the technocrats to utilize this technology in radar operations. WiMAX MIMO can exploit the range of WiMAX and the ...

WiMax is a wireless technology promising to deliver high data rates over large areas to a great number of users. In this paper, the performances of several algebraic space-time codes are investigated in a WiMax environment for different multi-antennae configurations, and by applying various detection methods. These performances are then compared against those of other space-time codes supported...

WiMAX is the worldwide interoperability for microwave access, to provide business and consumer world wireless broad band services in metropolitan area networks. It has a target range of 31 miles and a target transmission rate exceeding 100 Mbps. Mobile WiMAX is an OFDM based technology for deployment which allows multiple-antenna operations to be performed on vector-flat sub carrier. Fixed WiMA...

IEEE 802.16/WiMAX is the network which is designed with quality of service in mind. In this paper the authors have made an attempt to qualitatively analyse the performance factors at the physical layer of mobile WiMAX for Rayleigh and Rician channels using different modulation techniques. The comparison of quality of service parameters like BER and power spectral density between different chann...

In this paper, a simulation model for IEEE 802.16 (WiMAX) wireless mesh networks with distributed scheduling is developed. It provides a framework for the evaluation of reservation-based distributed scheduling (RBDS) policies at the medium access control (MAC) layer. The simulation model, called WiMAX-RBDS-Sim, is developed under the OPNET event-driven simulation environment. It provides interf...

A channel filter has been designed for Digital Down converter (DDC),that meets the standard of WiMAX in wireless communication. WiMAX is a technology emerging in the wireless communication system, in order to enhance the broadband wireless internet access. Digital Up Converter (DUC) and Digital Down Converter (DDC) are integral part of WiMAX system, that results in efficient low cost WiMAX syst...

This paper investigates the performance and capacity of a WiMAX 802.16e cellular system deployed via High Altitude Platform (HAP WiMAX) through extensive simulations. HAP WiMAX link performance is evaluated for a wide range of channel conditions in terms of elevation angle and signal to noise ratio (SNR) through a comprehensive link level simulator based on 802.16e. The obtained results are the...

WiMAX is a broadband wireless access (BWA) scheme based on IEEE 802.16. This is an emerging technology that aims at providing last mile access internet and data services. Since 2001, WiMAX has evolved from 802.16 to 802.16d standard for fixed wireless access and to new IEEE 802.16e (Mobile WiMAX) standard with mobility support. Mobile WiMAX introduces the most significant feature that is suppor...

WiMAX is at the peak of communication technology as it is gaining a great position in the next generation of wireless networks. With the development of various wireless networks rapidly, they have turn into necessary infrastructure in our networking atmosphere. The main challenge for WiMAX is the problems associated with various jamming attacks that make them unavailable. Jamming attack is easy...