Work place: Dept. of Electronics and Communication Engineering, National Institute of Technology Warangal, India
E-mail: sandeepvangala443@gmail.com
Website:
Research Interests:
Biography
V. Sandeep Kumar received B.Tech (E.C.E) degree from Jawaharlal Nehru Technological University, Hyderabad (JNTUH) and M.Tech [DC (Digital Communication)] degree from Kakatiya University, Warangal (KU), India. Currently, He is currently working toward the Ph.D. degree in the field of wireless communications at National Institute of Technology, Warangal, India. He is an IEEE student member, ISTE (Indian Society for Technical Education) member and IDES (Institute of Doctors, Engineers and Scientists) member.
By Sandeepkumar Vangala S. Anuradha
DOI: https://doi.org/10.5815/ijisa.2016.04.03, Pub. Date: 8 Apr. 2016
Orthogonal frequency division multiplexing with Offset Quadrature Amplitude Modulation (OFDM-OQAM) technique has drawn significant interests in recent years. However, most of the existing OFDM peak-to-average ratio (PAPR) reduction schemes cannot be used in the OFDM-OQAM system directly. In this paper, a modified scheme called overlapped segmental Active Constellation Extension (OS-ACE) is proposed to deal with the high PAPR problem specifically in the OFDM-OQAM system. For the proposed OS-ACE scheme, the input signals are divided into a number of overlapped segments and then the ACE operation is processed on each segment. Simulation results show that the modified scheme used in the OFDM-OQAM system can provide better performance than conventional ACE scheme directly used in the OFDM-OQAM system, and even outperforms conventional ACE scheme applied in the OFDM system.
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