Investigation of resource sharing methods in regards of network quality of service in device to device technique

Device to Device communication is the direct communication of devices by sharing resources without base station. Device to Device communication provides higher data rate and lower latency than traditional communication. Because of users share the same resource, the current spectrum is more effective but interference noise and power allocation problems occur between users. Resource sharing is done in two ways as orthogonal and non-orthogonal resource sharing. In this study, two resource sharing methods will be examined and the comparison of source sharing methods in terms of spectral efficient and data rate will be compared. Comparison of resource sharing methods will be done by nonlinear optimization method. Then, according to the obtained data, the algorithm will be presented for the source sharing method which better data rate and provides spectral efficiency. The proposed algorithm was created in two stages to provide the optimal value closest to the mathematical model. In the second phase, user power allocation is made to eliminate interference noise caused by resource sharing. In the second phase, user power allocation is made to eliminate interference noise from resource sharing. In addition, Device to Device communication method has been examined for data delay. Data delay was investigated using Large deviation theory, Probability Lyapunov deviation theory and Matching algorithm. All obtained data are shown by MATLAB software with simulation results.