OPTIMIZING SUBCARRIER AND POWER ALLOCATION FOR MAX-MIN FAIRNESS IN SWIPT-ENABLED MULTI-GROUP MULTICAST OFDM SYSTEMS

We take into consideration Multi Group Multicasting OFDM based System in this process called Simultaneous Wireless Information and Power Transfer (SWIPT). This method is offered to reduce utilisation of subcarrier. The carrier is processed by the information decoder and energy harvester. Subcarrier Assignment and Power Allocation are other divisions of the procedure. The division of Subcarrier Assignment will result in a decreased Subcarrier contingent upon the fulfilment of certain requirements. On the basis of a power splitter and a thorough search, additional power will be given. At the base station, power and subcarrier allocation is done in a way that maximises the least signal-to-noise ratio (SNR) amongst users for each subcarrier while still meeting user demands for collected power.An improved power splitter will be used. To maximise the lowest SNR across all users on each given subcarrier, the optimal subcarrier assignment, power distribution scheme, and power splitter ratios of the users are found using this approach. Convex programming solver is used to implement the Power Splitter's second stage. Each user also has a minimal power demand. This method comes really near to the exhaustive search that yields the best answer. Reducing the use of subcarrier is the goal of our method. to assign the appropriate subcarrier with the power allocation.