Analysis and Study of Multi-Symbol Encapsulated Orthogonal Frequency Division Multiplexing

Abstract

A secured communication with the least distortion and the least interference is the utmost requirement of the new-age wireless communication system. Various methods have been implemented to achieve a near-secure communication. But taking into consideration the multipath fading, inter-symbol interference, and the various fading and distortion factors, this condition is rarely achieved. So, with the available channel conditions and provided bandwidth for the exchange of information, orthogonal frequency division multiplexing has been found out to be the best option available for transmitting the maximum data possible through the channel. Though OFDM is very efficient in dealing with multi-path and intersymbol interference, it is very sensitive to frequency offset and Doppler shift as well as having high peak-to-average-power (PAPR) ratio. This makes the purpose of effective data communication incomplete. A recent modification of OFDM- multisymbol encapsulated OFDM can be used to neutralize all these disadvantages of OFDM and improve the performance of a wireless transmission system. This paper analyses the basic idea of OFDM and draws a conclusive statement about the advantages and disadvantages of OFDM. This paper also aims at discussing the new technology: MSE-OFDM as an improvement over OFDM with its simulated results and practical advantages.