Abstract
This paper presents the comparative BER performance of OFDM using BPSK, QPSK, and QAM. There is no advantage of OFDM-BPSK over conventional BPSK, but OFDM-QPSK performs well over a QPSK after an SNR value of 7 dB. OFDM with M-QAM performs well over a conventional QAM at high SNR (greater than 15 dB) values. So, nowadays in 4G mobile communication, we are using OFDM with the mapping of higher order QAM system to achieve high data rate at slightly high SNR value. OFDM with higher order QAM is used where proper SNR value is available (to take the advantage of high SNR and high data rate).
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Mandvi, Ghunawat, A.K. (2018). BER Comparison of OFDM System with the Mapping of Different Modulation Techniques Over Conventional Modulation Technique. In: Janyani, V., Tiwari, M., Singh, G., Minzioni, P. (eds) Optical and Wireless Technologies. Lecture Notes in Electrical Engineering, vol 472. Springer, Singapore. https://doi.org/10.1007/978-981-10-7395-3_25
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DOI: https://doi.org/10.1007/978-981-10-7395-3_25
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