This manuscript deals with the simulation and comparison of linear as well as non-linear results for Magnetic Levitation System ED-4810 for different parameters assigned to the model. At first, different results for the simulations are achieved, using Simulink R2017a as a tool. Different results achieved through simulations were than analyzed. Magnetic Levitation System considered in the manuscript, taken as a steel ball suspended in a voltage controlled magnetic field. Furthermore, state space controller is modeled in order to gain the linearity of the system. This study demonstrates the modeling, simulations and comparison of the model ED-4810 upon which, Routh Hurwitz Criterion is executed to accomplish the stability test of the system.
In this paper, we propose a new multi-node relay network, that works on the Amplify-and-Forward protocol, to select the most optimal path towards the destination; thus adaptively setting the number of relays to be involved in the cooperation. Nakagami-2 fading channel is considered in the modeling and Instantaneous channel state information (CSI) from the destination is used as the selection criteria at the relays. Locations of the relays and distances between them are taken into account for an improved signal to noise ratio (SNR) with reduction in the bit error rate (BER). Moreover, spatial diversity is applied on the destination using maximal ratio combining (MRC). An analysis of the different spatial diversity techniques is done to find the best suited technique and simulation results for a much less BER over a number of symbols in the input is presented.
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