Effect of Cyclic Prefix on OFDM System
Rashmi Mishra1, Baibaswata Mohapatra2, Nitin Naiyar3
1Miss Rashmi Mishra, M. Tech. Student, Department of Electronics and Telecommunication, Rungta College of Engineering and Technology, Bhilai (C.G.), India.
2Dr. Baibaswata Mohapatra, Associate Professor, Department of Electronics and Telecommunication Department, Rungta College of Engineering and Technology, Bhilai (C.G.), India.
3Mr. Nitin Naiyar Associate Professor, Department of Electronics and Telecommunication, Rungta College of Engineering and Technology, Bhilai (C.G.), India.
Manuscript received on 18 June 2012 | Revised Manuscript received on 25 June 2012 | Manuscript published on 30 June 2012 | PP: 168-170 | Volume-1 Issue-2, June 2012 | Retrieval Number: B0228051212/2012©BEIESP
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© The Authors. 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: Orthogonal Frequency Division Multiplexing (OFDM), because of its resistance to multipath fading, has attracted increasing interest in recent years as a suitable modulation scheme for commercial high-speed broadband wireless communication systems. OFDM can provide large data rates. Orthogonal frequency division multiplexing (OFDM) is one of the Multi-Carrier Modulation (MCM) techniques that transmit signals through multiple carriers. These carriers (subcarriers) have different frequencies and they are orthogonal to each other. There are different parameters which alters the performance of OFDM system. This thesis analyzes OFDM system and the effect of cyclic prefix and length of cyclic prefix on OFDM system. Besides, compare the performance of the system with and without cyclic prefix and with different RSF(Repeated Symbol Fraction).BER performance of the OFDM system is carried out with emphasis on the cyclic prefix and RSF. The simulation results show how a tradeoff is needed between reduction in multi-path effects and Transmission efficiency.
Keywords: BER, RSF, ISI.
Scope of the Article: System Integration