TECHNICAL ANALYSIS AND SIMULATION OF 4G WIRELESS NETWORK HANDOFF DECISION

E. U. Udo; G. O. Odo

E. U. Udo epartment of Electrical/Electronic Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria.
G. O. Odo Department of Electrical/Electronic Engineering, Michael Okpara University of Agriculture, Umudike, Abia State, Nigeria

Keywords: Handoff algorithm, internet access, 4G wireless network, MATLAB/Simulink

Abstract

This paper presents the technical analysis and simulation of 4G wireless network handoff decision. The integration of numerous new technologies into 4G services which provide faster wireless internet access, makes 4G technology an extremely complicated technology. Vertical handoff poses a great challenge in communication channel and this contributes to unbearable life for subscribers. The method used involves the handoff process for inter-nodes handoff, together with matching network loads using three phases of operation. The performance of the four handoff algorithms was optimized, compared and evaluated using MATLAB/Simulink. The results obtained shows that at 6ms of time to trigger, the results of the proposed handoff algorithm had the highest optimized ratio value of 18225.701 and also, at 1 beta level, the proposed algorithm had the lowest optimized ratio value of 9255.701. Again, at 1.5 alpha level, the proposed algorithm had the highest optimized ratio value of 3012.701. The experimented results produced the minimum handoff delay of 1000.701 when compared with the other three algorithms. In conclusion, the results realized have improved the handoff decisions in order to achieve a reliable signal strength in wireless network.