SNR Improvement Employing Dynamics Beamforming Based on Angle of Arrival for Mobile WiMax IEEE 802.16e

T. Yuwono

Abstract


The development of telecommunicationtechnology and services is very rapid. One oftelecommunication technology that is beingdeveloped is WiMax (Worldwide Interoperabilityfor Microwave Access). The advantages of WiMaxis it possess much range and can operate in non -LOS conditions. So it fits implemented inIndonesia to accelerate the internet penetration.Some features of WiMax technology is higherbandwidth and further range/area. SNRImprovement is The effort to increase the rangeand improve the BER (Bit Error Rate). In thispaper, we propose the dynamics beamformingalgorithm to improve SNR in mobile WiMax.The algorithm will desire the best beamwidth andnumber of beam based on Angle of Arrival (AoA)of MS in the cell. In this paper, we also evaluatethe algorithm with compared to switched beamantenna. The simulation result shows thatdynamics beamforming have SNR performancebetter than switched beam antenna about 7dB.

Keywords


Dynamics beamforming, AoA, Mobile WiMax, SNR

References


H. Yagoobi, “Scalable OFDMA Physical Layer in IEEE 802.16 WirelessMAN”, Intel Technology Journal, Vol 08, August 2004.

Mobile WiMax – Part I : A Technical Overview and Performance Evaluation Copyright 2006 WiMax Forum

M.Ho, G. L. Stiber, M.D. Austin,” Performance of Switched-Beam Smart Antennas for Cellular Radio Systems,” IEEE Transactions On Vehicular Technology, Vol.47, No.1, February 1998.

L.F. Fabricio, C. Paulo,’Coverage Prediction and Performance Evaluation of Wireless Metropolitan Area networks based on IEEE 802.16,’ Journal of Communication and Information System, vol.20,No.3,2005

M. Ismail. Cellular Topologies for Personal Communications Systems. Ph.D Thesis, University of Bradford. 1995.

V.S. Abhayawardhana, I.J. Wassel, D. Crosby, M.P. Sellers, M.G. Brown, “Comparison of empirical propagation path loss models for fixed wireless access systems,” 61th IEEE Technology Conference, Stockholm, pp. 73-77, 2005.

J. Milanovic, Rimac-Drlje S, Bejuk K, “Comparison of propagation model accuracy for WiMax on 3.5GHz,” 14th IEEE International conference on electronic circuits and systems, Morocco, pp. 111-114. 2007.


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