Transmission of MIMO - OFDM signal using Optical Link

— Wireless networks have quickly become part of everyday life. Wireless LANs, cell phone networks, and personal area networks are just a few examples of widely used wireless networks. However, wireless devices are range and data rate limited. The research community has spent a great deal of effort on finding ways to overcome these limitations. In other words, high Data-Rate wireless access is demanded by many applications. Traditionally, more bandwidth is required for higher data-rate transmission. However, due to spectral limitations, it is often impractical or sometimes very expensive to increase bandwidth. Multiple transmit and receive antennas can be used to form multiple-input multiple-output (MIMO) channels to increase the capacity by a factor of the minimum number of transmit and receive antennas. Along with MIMO channels Orthogonal frequency division multiplexing (OFDM) i.e. MIMO-OFDM is considered for wideband transmission to mitigate inter symbol interference and enhance system capacity, Whereas optical communication has several benefits such as larger bandwidth, reduced power consumption that has made it an attractive implementation option for various communication systems including wireless LAN’s. This paper investigates the feasibility of MIMO-OFDM technique optical fiber based system i.e. MIMO-OFDM for optical communication.