• DWI ASTHARINI Universitas Al Azhar Indonesia, Jakarta
  • TYAS BASTIAN Universitas Al Azhar Indonesia, Jakarta
  • RIKAH MUSTIKA Universitas Al Azhar Indonesia, Jakarta
  • OCTARINA NUR SAMIJAYANI Universitas Al Azhar Indonesia, Jakarta
  • RIRI SAFITRI Universitas Al Azhar Indonesia, Jakarta


OFDM, Zero Padding, Rayleigh fading, Multipath, BER


This article report simulation of OFDM over various multipath Rayleigh fading channel, with dicussion on the guard interval method. Techniques of guard interval employed are Cyclic Prefix and Zero Padding, each with a range of ratio from 1:1 to 16:1. The transmission are simulated over Rayleigh fading channel applying 1 to 4 paths in comparison. Observations on BER value for OFDM transceiver is done with 16- QAM as the base modulation. Overall, implementation of zero padding for guard interval in this work has resulted on better performance in compare with those of cyclic prefix. With zero padding of 8:1 on 64 packet data, it is optimum in compare with variety of others. The deviation of BER is however less than 0.001 within each channel type with various guard interval. For Rayleigh environment, the error increased significantly up to 2 paths, but tended to saturate for 3 and 4 paths.



Download data is not yet available.


Hen-Geul Yeh; Ingerson, P., "Software-defined radio for OFDM transceivers," in Systems

Conference, 2010 4th Annual IEEE , vol., no., pp.261-266, 5-8 April 2010.

Palekar, AD; Ingole, PV., “OFDM system using FFT and IFFT” IJARCSSE vol. 3. Issue 12.

December 2013.

Bouanen, M.; Gagnon, F.; Kaddoum, G.; Couillard, D.; Thibeault, C., "An LPI design for secure


, vol., no., pp.1-6, Oct. 29 2012-Nov. 1 2012.

Xuefei Li; Tuzlukov, V., "OFDM system performance with M-QAM under employment of

generalized receiver," in Information Science, Electronics and Electrical Engineering (ISEEE),

International Conference on , vol.2, no., pp.1156-1160, 26-28 April 2014.

Paujia, Nia Sipa; Astharini, Dwi; Samijayani, Octarina Nur; “SER and BER analysis using GNU

Radio for PSK and QAM Modulation” in Proceedings of ISSTIN. pp. 136-141. Oct 2012.

Sharef, Z.T.; Alaradi, A.E.; Sharef, B.T., "Performance Evaluation for WiMAX 802.16e OFDMA

Physical Layer," in Computational Intelligence, Communication Systems and Networks

(CICSyN), 2012 Fourth International Conference on , vol., no., pp.351-355, 24-26 July 2012.

Angrisani, L.; Napolitano, A., "Modulation Quality Measurement in WiMAX Systems Through a

Fully Digital Signal Processing Approach," in Instrumentation and Measurement, IEEE

Transactions on , vol.59, no.9, pp.2286-2302, Sept. 2010.

Wamicha, Joseph and Winberg, Simon. “IEEE 802.11 OFDM Software Defined Radio Beacon

Frame Transmission”. IEEE Africon. pp. 1-6. IEEE, 2011.

Dogan, H.; Yildiz, H.; Cooklev, T.; Acar, Y., "Coded OFDM wireless systems with generalized

prefix," in Application of Information and Communication Technologies (AICT), 2012 6th

International Conference on , vol., no., pp.1-4, 17-19 Oct. 2012.

Mohammed, U.S.; Tohamy, A., "A low complexity OFDM system with minimum

intersymbol interference," in Wireless and Mobile Networking Conference (WMNC), 2012 5th

Joint IFIP , vol., no., pp.22-29, 19-21 Sept. 2012.

Hofbauer, C.; Huemer, M., "A study of data rate equivalent UW-OFDM and CP-OFDM

concepts," in Signals, Systems and Computers (ASILOMAR), 2012 Conference Record of the

Forty Sixth Asilomar Conference on , vol., no., pp.173-177, 4-7 Nov. 2012.

Craciunescu, R.; Halunga, S.; Fratu, O., "Guard Interval effects on OFDM /BPSK

transmissions over fading channels," in Telecommunications Forum (TELFOR), 2012 20th , vol.,

no., pp.471-474, 20-22 Nov. 2012.

Islam, MS; Barai, GR; Mahmood, A., “Performance analysis of different modulation schemes

using OFDM techniques in Rayleigh fading channel”, International Journal of Fundamental

Physical Sciences IJFPS, Vol.1, No.1, pp. 22-27, March, 2011

Abhishek, K; Amita, Y; Neha, J., “Performance Elevation Criteria for OFDM under AWGN

fading channel using IEEE 802.11” IJSCE. 2011.

Harada, H; Prasad, R; “Simulation and software Radio for Mobile Communications”, Artech

House Publishers, 2002

Mathew, B.; George, P.; Nathan, R.V.; Shukkor, S.; Lakshmi, A.N., "BER comparison of

DCT and FFT based OFDM systems in AWGN and Rayleigh fading channels with different

modulation schemes," in Emerging Research Areas and 2013 International Conference on

Microelectronics, Communications and Renewable Energy (AICERA/ICMiCR), 2013 Annual

International Conference on , vol., no., pp.1-4, 4-6 June 2013.