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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29526

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Channel Sounding and PAPR Reduction in OFDM for WiMAX Using Software Defined Radio
This paper addresses the reduction of peak to average power ratio (PAPR) for the OFDM in Mobile-WiMAX physical layer (PHY) standard. In the process, the best achievable PAPR of 0 dB is found for the OFDM spectrum using phase modulation technique which avoids the nonlinear distortion. The performance of the WiMAX PHY standard is handled by the software defined radio (SDR) prototype in which GNU Radio and USRP N210 employed as software and hardware platforms respectively. It is also found that BER performance is shown for different coding and different modulation schemes. To empathize wireless propagation in specific environments, a sliding correlator wireless channel sounding system is designed by using SDR testbed.
Digital Object Identifier (DOI):


[1] Andrews, Je rey G and Ghosh, Arunabha and Muhamed, Rias, "Fundamentals of WiMAX: understanding broadband wireless networking", Prentice Hall PTR, 2007.
[2] Nee, Richard van and Prasad, Ramjee, "OFDM for wireless multimedia communications", Artec House, Inc, 2000.
[3] Nader, Charles and Landin, Per Niklas and Van Moer et al., "Performance evaluation of peak-to-average power ratio reduction and digital pre-distortion for OFDM based systems", IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 12, pp. 3504-3511, 2011.
[4] Ai, Bo and Yang, Zhi-xing and Pan et al., "On the synchronization techniques for wireless OFDM systems", IEEE Transactions on Broadcasting, vol. 52, no. 2, pp. 236-244, 2006.
[5] Jiang, Tao and Wu, Yiyan, "An overview: peak-to-average power ratio reduction techniques for OFDM signals", IEEE Transactions on Broadcasting, vol. 54, no. 2, pp. 257-268, 2008.
[6] Sabbaghian, Maryam and Kwak, Yongjun and Smida, Besma and Tarokh, Vahid, "Near Shannon limit and low peak to average power ratio turbo block coded OFDM", IEEE Transactions on Communications, vol. 59, no. 8, pp. 2042-2045, 2011.
[7] B. Siva Kumar Reddy and Dr. B. Lakshmi, "Channel Coding and Clipping in OFDM for WiMAX using SDR", International Journal on Recent Trends in Engineering & Technology, vol. 9, no. 1, 2013.
[8] B. Siva Kumar Reddy, B. Lakshmi,” PAPR Reduction and BER Performance for WiMAX on USRP N210 using GNU Radio, ACEEEInternational Journal on Communications, vol 5, no 1, 2013.
[9] Cha, Sungkeun and Park, Myonghee and Lee, Sungeun and Bang, Keuk- Joon and Hong, Daesik, "A new PAPR reduction technique for OFDM systems using advanced peak windowing method", IEEE Transactions on Consumer Electronics, vol. 54, no. 2, pp. 405-410, 2008.
[10] Hou, Jun and Ge, Jianhua and Li, Jing, "Peak-to-average power ratio reduction of OFDM signals using PTS scheme with low computational complexity", IEEE Transactions on Broadcasting, vol. 57, no. 1, pp. 143-148, 2011.
[11] Ghassemi, Abolfazl and Gulliver, T Aaron, "PAPR reduction of OFDM using PTS and error-correcting code subblocking- Transactions Papers", IEEE Transactions on Wireless Communications, vol. 9, no. 3, pp. 980- 989, 2010.
[12] Thompson, Steve C and Ahmed, Ahsen U and Proakis et al., "Constant envelope OFDM", IEEE Transactions on Communications, vol. 56, no. 8, pp. 1300-1312, 2008.
[13] Islam, Muhammad Nazmul, et al. "A wireless channel sounding system for rapid propagation measurements." Communications (ICC), 2013 IEEE International Conference on. IEEE, 2013.
[14] GNU Radio: The gnu software radio, Available from World Wide Web: https://gnuradio. org, 2007.
[15] Reis, Garcia and Luiz, Andre, Introduction to the Software- defined Radio Approach, IEEE Latin America Transactions, vol. 10, no. 1, pp. 1156-1161, 2012.
[16] Ettus, Matt, "USRP User's and Developer's Guide", Ettus Research LLC, 2005.
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