alexa Hybrid SLM-PTS for PAPR Reduction in MIMO-OFDM
ISSN ONLINE(2278-8875) PRINT (2320-3765)

International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering
Open Access

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Research Article

Hybrid SLM-PTS for PAPR Reduction in MIMO-OFDM

Mohamed M. Zahra 1, Ibrahim F. Tarrad 2, Mohamed Mounir 3
  1. Assistant professor, Dept. of ECE, Faculty of Engineering, Al Azhar University, Cairo, Egypt
  2. Lecturer, Dept. of ECE, Faculty of Engineering, Al Azhar University, Cairo, Egypt
  3. M.Sc. Student, Dept. of ECE, Faculty of Engineering, Al Azhar University, Cairo, Egypt
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Abstract

Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a promising candidate for 4G broadband wireless communications. However, MIMO-OFDM inherited the problem of high Peak-to-Average Power Ratio (PAPR) from OFDM. Many PAPR reduction techniques were developed in last two decades to reduce the PAPR of OFDM, among them Partial Transmit Sequence (PTS) and Selected Mapping (SLM) show a highly successful PAPR reduction performance. In literature there are three well known approaches for extending SLM and PTS to MIMO-OFDM namely ordinary (oSLM/oPTS), simplified (sSLM/sPTS), and directed (dSLM/dPTS). Hybrid SLM-PTS techniques combine SLM and PTS in four different ways to reduce the required computational complexity lower than both SLM and PTS. Here, we will show the performance of applying ordinary and simplified approaches on the Hybrid SLM-PTS techniques in MIMO-OFDM system. Also, we will investigate the possibility of applying directed approach to Hybrid SLM-PTS techniques by means of proposed approach that combining dSLM and dPTS in one approach.

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