A Review on OFDM Based WiMAX System
Mohd. Abuzer Khan1, Deepak Bicholia2, Smita Patil3

1Mohd. Abuzer Khan, Dept. of E&TC Engg. IES, IPS Academy Indore [M.P] 452012, India
2Deepak Bicholia, Asst. Prof., Department of E&TC Engineering, IES, IPS Academy, Indore [M.P] 452012, India.
3Smita Patil, Assoc. Prof., Department of E&TC Engineering, IES, IPS Academy, Indore [M.P] 452012, India.
Manuscript received on March 11, 2015. | Revised Manuscript Received on March 12, 2015. | Manuscript published on March 18, 2015. | PP: 14-17 | Volume-2 Issue-4, March 2015.
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: In this paper, we present the review on the OFDM based WiMAX system and its various versions. Worldwide Interoperability for Microwave Access has a acronym WiMAX. It is a PTP & PMP wireless technology which is based on IEEE 802.16 standard. WiMAX is a wireless technology that supports high speed data service, video and voice at the customer side. WiMAX technology could be used to overcome the problems like less coverage area, low data rate and less security. WiMAX technology has various versions that are 802.16d (fixed WiMAX) and 802.16e (mobile WiMAX). OFDM is an amalgam of multiplexing and modulation. Through this review paper, the observation has been done of the different modulation techniques and different wireless channels. The outcome of this review will provide a basic idea about the amendment of the WiMAX system by using Orthogonal Frequency Division Multiplexing technology
Keywords: WiMAX, OFDM, ICI, ISI, Doppler shift, Channel estimation, BER, SNR, Cyclic Prefix.