alexa Abstract | Performance Analysis of PAPR Reduction in 4×4 Spatially Multiplexed MIMO-OFDM System using SLM and Optimum-PTS Techniques
ISSN: 2167-0919

Journal of Telecommunications System & Management
Open Access

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Abstract

Multiple-input Multiple-output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a promising candidate for 4G high-data-rate broadband wireless communications. However, MIMO-OFDM inherited the problem of high Peak-to-Average Power Ratio (PAPR) from OFDM which leads to in-band distortion, undesired spectral spreading, low power efficiency and increases the cost of the RF power amplifier. 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) are the important ones. This paper proposes two PAPR reduction technique; SLM and Optimum -PTS for reducing the PAPR and does performance comparison of these two techniques on the basis of reduction in PAPR level, BER and the number of redundant bits required. It shows that the use of Optimum-PTS technique with QPSK modulation comprising of 128 subcarriers provides better PAPR reduction and good BER as compared to SLM.

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Author(s): Poudel B and Mishra B

Keywords

Multiple input multiple output, Orthogonal frequency division multiplexing, Peak-to average power ratio, Selected mapping, Partial transmit sequence, Quadrature phase shift keying, Complementary cumulative distribution function, Bit error rate, Antenna Design, Cordless, Information Science, Wave Length, Radio Waves, Wireless Journals, Web Developer, Spatial Database, Soft Computing, Smart Grid, Digital Signal Processing, Satellite Communication, Radar Imaging, Multimedia Network, Datamining, Cyber Physical System, Cyber Security, Computer Networking, Telecommunications Journal

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