Partial Transmit Sequence Technique Based on Multi-objective Bat Algorithm for PAPR Reduction in OFDM

With the advancement in communication field and its increasing demands, there should be high data rate in addition to both power efficiency and lower bit rate. In Multi-carrier Modulation (MCM) such as orthogonal frequency division multiplexing (OFDM), the data stream, to be transmitted, is divided into several lower rate data streams. OFDM signals have a problem of high peak to average power ratio (PAPR). Several techniques have been executed to improve the PAPR while partial transmit sequence (PTS) technique provides a successful reduction in PAPR, but it may increase the computational complexity. In this paper an efficient technique i.e. Partial Transmit Sequence based Multi-objective Bat Algorithm (MOBA-PTS) has been presented. The simulation result of the proposed algorithm has effective method for reducing PAPR and computationally complexity. Keywords— Orthogonal Frequency Division Modulation (OFDM); Peak to average power ratio (PAPR); Partial transmits sequence (PTS); Multi-objective bat algorithm (MOBA).

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