An Effectively Deploying of Relay Stations (Rs) In WIMAX Networks

Abstract

The relay stations are widely used in major wireless technologies i.e. WiMAX (Worldwide Interoperability for Microwave Access) and LTE (Long term evolution) which provides cost efficient service to the operators and end subscribers. It is quite challenging to provide guaranteed Quality of Service (QoS) in WiMAX networks in cost efficient way. The primary aim is to reduce the total deployment cost in relay stations and use the existing spectral resources as effectively as possible to increase throughput for end users with high demanding applications i.e. voice and video. Keeping in mind the cost and the increasingly more demanding applications with growing large number of users, primary consideration of this paper is to increase throughput in a cost effective way. This paper shows the study of cell coverage and usage capacity by varying distances between a relay node and a base station in a WiMAX cell. For the Simulation purpose we have employed OPNET (Optimized Network Engineering Tool) MODELER 14.5. The performance of network is measured with respect to the QoS parameters like Throughput.