Performance of MIMO OFDM in a Below-Decks Environment Using OMNI Directional Antennas

For more than a decade, there has been expand interest in characterizing electromagnetic propagation in below-deck surroundings of naval a ship for the purpose of position wireless networks. Below-deck spaces are for the most part metal structures. These spaces constitute multipath-rich surroundings that introduce distinct challenges for position wireless networks. The RF spectrum on ships also introduces active radar and communication signals, leak, from working machinery, and interference by personnel on board. Still, position  wireless networks in below-deck spaces is desirable as it offers significant potential in increase, and in some applications, replacing current wired network infrastructure., calculate shipboard signal propagation for communication has been the focus of a number of studies. Past studies focused on received power and path loss, as well as the effects of opening/closing doors The study in measured the received power, power delay profile, and RMS delay spread of a wireless channel over  involving several parts decks of a merchant ship. The measurements in were used to evaluate, coherence bandwidth and delay spread, which can be used to calculate  the maximum rate at which narrowband communication technique scan transmit data without experiencing inter symbol interference (ISI). Orthogonal frequency-division multiplexing (OFDM) is right for this type of surroundings as a means to mitigate frequency selectivity that may reduce the role of coherence bandwidth as a limiting factor in wireless communications throughput. Multiple-input–multiple-output (MIMO) communications and omnidirectional antennas techniques can also upgrade, radio performance by exploiting spatially uncorrelated fading of wireless channels common in multipath-rich environments to improve throughput and reliability. The main work of this letter is the quantification of the improvements in capacity, signal integrity, and throughput that can be see through the use of OFDM and omnidirectional antennas techniques in on ship below-deck environments.