Ashraf A. Eltholth and Adel R. Mikhail and A. Elshirbini and Moawad I. Moawad and A. I. Abdelfattah
PeaktoAverage Power Ratio Reduction in OFDM Systems using Huffman Coding
1365 - 1369
2008
2
7
International Journal of Electronics and Communication Engineering
https://publications.waset.org/pdf/1174
https://publications.waset.org/vol/19
World Academy of Science, Engineering and Technology
In this paper we proposed the use of Huffman
coding to reduce the PAR of an OFDM system as a distortionless
scrambling technique, and we utilize the amount saved in the
total bit rate by the Huffman coding to send the encoding table
for accurate decoding at the receiver without reducing the
effective throughput. We found that the use of Huffman coding
reduces the PAR by about 6 dB. Also we have investigated the
effect of PAR reduction due to Huffman coding through testing
the spectral spreading and the inband distortion due to HPA with
different IBO values. We found a complete match of our
expectation from the proposed solution with the obtained
simulation results.
Open Science Index 19, 2008