Reduction of PAPR in OFDM Signals by using Ele ctromagnetism Optimization A lgorithm
Journal Title: International Journal of Scientific Research and Management - Year 2015, Vol 3, Issue 8
Abstract
Orthogonal Frequency Division Multiplexing grown to be a trendy modulation process inside impressive tempo wireless communications. It is more advantageo us over remaining technologies, even though it has some problems also. The high PAPR (Peak to Average Power Ratio) is the main difficulty which causes non linearity at the receiving end. To red uce the PAPR so many techniques are proposed in previous such as clipping a nd filtering, SLM , CE , SA, PTS and so on. PTS (Partial Transmit Sequence) is highly successive than another . I n this paper PTS technique is used to reduce the PAPR but t here is one problem with PTS technique, it introduces a high amount of complexity. So that to reduce such complexity and get better PAPR we planned to implement a novel based stochastic optimization algorithm which is EM (Electromagnetism - like ) algorithm. By using EM get the better PAPR than PTS
Authors and Affiliations
R. Padma
Keywords
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