Abstract
AbstractOCDM, a MCM scheme compatible to widespread OFDM, has been proposed in the literature. It provides maximum spectral efficiency for chirp spread spectrum system and outperforms over OFDM. In this paper, we have discussed the generation of OCDM system and its implementation using OFDM system with some minor correction. The computational complexity analysis of OCDM system is also carried out in this paper and its comparison with OFDM system is also done. It has been found that like OFDM, OCDM system also suffers from the problem of high PAPR. Some of the popular schemes for PAPR reduction applicable to OCDM system have been discussed and its performance analysis in terms of PAPR and BER performance is also carried out in this paper. Further, applications of OCDM for wireless communication, optical fiber communication, UWA communication and MIMO system is also presented in detail.KeywordsChirp SignalDFnTOCDMPAPR
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