期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2017
卷号：5
期号：3
页码：5137
DOI：10.15680/IJIRCCE.2017.0503273
出版社：S&S Publications
摘要：OFDM has been widely adopted in many more applications due to its good spectral performance and low sensitivity to impulse noise andmultipath channels. In OFDM that a cyclic prefixes (CP) is appended to each symbol in order to mitigate the effect of Inter-Symbol-Interference (ISI) and intercarrier interference (ICI). However, this reduces the spectral efficiency. A perfect reconstruction using wavelet based OFDM provides good orthogonality and with its use Bit Error Rate is improved. Wavelet based system does not require CP, so spectrum efficiency is increased. In this paper, I am presenting BER analysis of conventional and wavelet based OFDM in LTE using different modulation techniques like QAM, 4 QAM, 16 QAM, 64 QAM and 256 QAM.
