A Study and Survey of OFDM versus COFDM
Jyoti Kataria1, Pawan Kumar2, Tilak Raj3

1Jyoti Kataria, Department of ECE, KIIT college of Engineering, Gurgaon, India.
2Pawan Kumar, Department of ECE, GITM, Gurgaon, India.
3Tilak Raj, Department of ECE, Applied College of Management & technology, Palwal, India.
Manuscript received on April 05, 2013. | Revised Manuscript received on April 11, 2013. | Manuscript published on April 15, 2013. | PP: 64-67 | Volume-1 Issue-5, April 2013. | Retrieval Number: E0254041513/2013©BEIESP
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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: Modern wireless communications system demands higher data rate environment and reliable transmission. OFDM which is suitable for high data rate transmission at reasonable complexity in wireless channels; combined with channel coding scheme for improving reliability of system called COFDM. Coding scheme can be chosen for any system which satisfies requirements of high data rate as well as good error capability and according to complexity, suitable delay and desired coding gain for system. The aim of this paper to making literature comparison of COFDM with OFDM and study shows that COFDM outperforms than OFDM with respect to reliable transmission, fading/noisy environment, BER performance, bandwidth efficiency.
Keywords: COFDM,OFDM , Block Code & BER .