Review on VLSI architectures for optical OFDM receivers

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is one of the most recent modulation techniques that enable us to reach higher data rates, both in wired and wireless communication systems. Recently, it has proved more efficient in optical networks. This paper gives a comparison review of existing OFDM receiver architectures and their modes of operation. Also, most of the OFDM systems used Fourier transform for modulation and demodulation. The performance of Fourier Transform algorithm with other algorithm (Hartley Transform) will be explored. This detailed review and performance analysis of various receiver architectures will provide guidelines for an individual to design an OFDM receiver and the important parameters to be considered. © 2011 Springer-Verlag.