Various Modulation Options for OFDM in 5G System: A Comparative Approach

Balram Damodhar Timande, Dr. Manoj Kumar Nigam

Abstract


The loss of information and signal quality degradation is the major issue in wireless communication due to multipath fading. The ‘multi-input multi-output (MIMO)’ antenna system can be used to minimize the signal fading which alternatively reduces the error rates but at the cost of hardware complexity, power consumption. The most critical issue in wireless communication is the availability of bandwidth, and signal quality. These issues can be resolved satisfactorily with the employment of ‘orthogonal frequency division multiplexing (OFDM)’ system. The significant functional element of the OFDM system is the kind of modulation technique employed.  Various modulation techniques are employed in the OFDM system to enhance the data rates as well as to reduce the error rates. This article focuses on the error rate behavior of different PSK and QAM modulation techniques used in the OFDM system.

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References


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