2013/11/14 by Leila Sahraoui, Sahraoui, Leila, Djmail Messadeg +3
Computer Science · #C.2 #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #cs.NI #msc:C.2
paper · pdf · doi:10.48550/arxiv.1311.3638
arXiv admin note: text overlap with arXiv:1205.2269 by other authors
arxiv created 2013/11/14 · arxiv updated 2013/11/15
An OFDM system is combined with multiple-input multiple-output (MIMO) in order to increase the diversity gain and system capacity over the time variant frequency-selective channels. However, a major drawback of MIMO-OFDM system is that the transmitted signals on different antennas might exhibit high peak-to-average power ratio (PAPR).In this paper, we present a PAPR analysis reduction of space-timeblock-coded (STBC) MIMO-OFDM system for 4G wirelessnetworks. Several techniques have been used to reduce the PAPR of the (STBC) MIMOOFDM system: clipping and filtering, partial transmit sequence (PTS) and selected mapping (SLM). Simulation results show that clipping and filtering provides a better PAPR reduction than the others methods and only SLM technique conserve the PAPR reduction in reception part of signal.