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Journal of Emerging Trends in Computing and Information Sciences >> Call for Papers Vol. 8 No. 3, March 2017

Journal of Emerging Trends in Computing and Information Sciences

Modeling of Orthogonal Frequency Division Multiplexing (OFDM) for Transmission in Broadband Wireless Communications

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Author John Samuel, Akinola Emmanuel, Ibikunle Frank, Ndujiuba Charles, Akinade Bayonle
ISSN 2079-8407
On Pages 534-539
Volume No. 3
Issue No. 4
Issue Date April 01, 2012
Publishing Date April 01, 2012
Keywords Fast Fourier Transform, OFDM, CDMA, FDMA, TDMA, BER


Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a multi carrier modulation technique that provides high bandwidth efficiency because the carriers are orthogonal to each other and multiple carriers share the data among themselves. The main advantage of this transmission technique is its robustness to channel fading in wireless communication environment. This paper investigates the effectiveness of OFDM and assesses its suitability as a modulation technique in wireless communications. Several of the main factors affecting the performance of a typical OFDM system are considered and they include multipath delay spread, channel noise, distortion (clipping), and timing requirements. The core processing block and performance analysis of the system is modeled usingMatlab.  

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