Evaluation of Optimized PAPR and BER of OFDM signal by using Clipping and Filtering Technique
نویسندگان
چکیده
-Orthogonal Frequency Division Multiplexing (OFDM) is an emerging field of research in the field of wireless communication and finds its application where high data rate is required at low latency and better spectral efficiency. Peak to Average Power Ratio (PAPR) is the limiting factor for an OFDM system as it degrades the system performance by reducing SQNR of ADC/DAC as well as it affects the transmitter amplifier. There are many techniques to overcome the problem of PAPR like Clipping and Filtering, Coding Technique, Scrambling Technique and many more. In this paper we discussed clipping and filtering technique which is easy to implement and reduces the amount of PAPR by clipping the peak of the maximum power signal. Moreover, analysis of PAPR is given by varying different parameters. The PAPR problem is more important in the uplink since the efficiency of power amplifier is critical due to the limited battery power in a mobile terminal.
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