Reduction of PAPR by Hybridization of the Methodologies First by Applying SLM Technique and Then Clipping and Filtering on the Signal
Obair Bashir Bhat1, Birinderjit Singh2
1Obair Bashir Bhat, M. Tech (ECE), Swami Vivekananda Institute of Engineering and Technology, Banur, Punjab India
2Er. Birinderjit Singh, Asset. Professor, Swami Vivekananda Institute of Engineering and Technology, Banur, Punjab India
Manuscript Received on July 11, 2015. | Revised Manuscript Received on July 24, 2015. | Manuscript published on August 20, 2015. | PP: 11-13 | Volume-3 Issue-9, August 2015. | Retrieval Number: I0655083915/2015©BEIESP
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Abstract: Communication is one of the important facet of life. With the growth in age and its growing demands, there has been accelerated advancement in the field of communications. Signals, at the beginning were sent in the analog domain, are being mailed supplementary in the digital domain these days. For better transmission, even single – carrier waves are being replaced by multi – carriers. Multi – carrier systems like CDMA and OFDM are now – a – days being appliances regularly. In the OFDM system, installed equilaterally, sub – carriers are used to carry the data from the transmitter end to the receiver end. Subsistence of guard band in this system accords with the problem of ISI and noise is minimized by larger number of sub – carriers. But the large Peak – to – Average Power Ratio of these signal have some undesirable effects on the system. in this thesis we have concentrated more on learning the basics of an OFDM System and have undertaken various methods to reduce the PAPR in the system so that this system can be used more commonly and effectively.
Keywords: CDMA, OFDM, PAPR, Carriers, ISI.