Simulation of IEEE 802.16j Mobile WiMAX Relay Network to Determine the Most Efficient Zone to Deploy Relay Station

摘要

Wireless technologies usage is rapidly expanding and WiMAX {Worldwide Interoperability for Microwave Access) technology is more widely used. The new WiMAX standard first uses relay stations (RS) for better service quality. Published works analyses relay stations influence to the quality of service, as well as analyses relay stations resource distribution and management, creating network topology for better service quality [1-4]. However there are no specific studies done to determine most efficient zone to deploy RS. To achieve this IEEE 802.16j simulation was made with NCTUns a network simulator and emulator that directly use's real-life TCP/IP protocol stack and applications to generate accurate simulation results. This papers goal is to determine which modulation zone is the most efficient for relay stations to be deployed to achieve maximal network throughput. This paper also analyzes the number of subscriber stations impact to the network throughput with slot load in one frame and optimal relay stations number connected to one base station to ensure the highest quality internet connection.