PROJECT TITLE :

Joint User Pairing and Power Allocation in Virtual MIMO Systems - 2018

ABSTRACT:

Virtual multiple-input multiple-output (V-MIMO) is an effective method to achieve a diversity gain in uplink channels. A well-designed user pairing theme in V-MIMO systems will exploit multiuser diversity to yield a significant performance gain. This Project investigates joint user pairing and power allocation problems in V-MIMO systems to maximize energy potency (EE) whereas guaranteeing spectrum potency (SE) below a total power consumption constraint. We tend to formulate such a joint problem as a advanced nonlinear optimization problem, that will be solved in 2 steps in M ×K V-MIMO systems, i.e., power allocation with known user group and joint user pairing and power allocation. A multi-level water-filling technique is used, and an iterative algorithm primarily based on the outputs from the first step is employed in the second step. Finally, we have a tendency to propose a joint user pairing and power allocation theme to seek out a user cluster which will achieve the utmost EE with power allocation. Simulation results and performance comparisons illustrate improved performance of the proposed scheme. Compared to the present user pairing approaches, the proposed scheme achieves a significantly high EE gain while guaranteeing SE of a V-MIMO system.