A Low Complexity BSLM Scheme for Reducing the PAPR of OFDM Systems |
Author(s): |
| Brajesh Chandra Anuragi , Department of Electronics & Communication Engineering MITS Gwalior, India; Dr. Sarita Singh Bhadauria, Department of Electronics & Communication Engineering MITS Gwalior, India |
Keywords: |
| Orthogonal Frequency Division Multiplexing (OFDM), Peak-to-Average Power Ratio (PAPR), Selected Mapping (SLM), Block Selected Mapping (BSLM), Complementary Cumulative Distribution Function (CCDF), Side Information (SI) |
Abstract |
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High Peak-to-Average Power Ratio (PAPR) is a well-known drawback in Orthogonal Frequency Division Multiplexing (OFDM). Selective Mapping (SLM) is an effective scheme for PAPR reduction of OFDM system. But SLM technique has a problem of the high computational complexity. The computational complexity of SLM technique is linearly increases as the number of phase sequences increase. The proposed BSLM technique is capable of partitioning the OFDM symbol sequence into several blocks to create more alternative OFDM signal sequences. This considerably reduces the computational complexity with the similar performance of PAPR reduction compared with the conventional SLM scheme. The simulation results show that proposed BSLM scheme achieves better performance of reduces the computational complexity than the conventional SLM scheme. |
Other Details |
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Paper ID: IJSRDV3I30297 Published in: Volume : 3, Issue : 3 Publication Date: 01/06/2015 Page(s): 614-617 |
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