Per user based Threshold Scheduling to improve Bit Error Rate performance for Multi User MIMO Networks compared to Fair Threshold Scheduling

Per-user based Threshold Scheduling (PUTS) is realized for Multi Input Multi Output (MIMO) system for Bit Error Rate (BER) improvement compared to Fair Threshold Scheduling (FTS). In communication systems, MU-MIMO is an important technology that connects multiple users with Wi-Fi routers at same time. Bit Error Rate is the main problem in the MU-MIMO 5G wireless system. To optimize this, PUTS is proposed. The aim of Per User Threshold scheduling is to improve the BER performance by individual user threshold assignment which is based on their previous mobility scenario. Space Time Block Code (STBC) code is used to realize MIMO for measuring Per User Threshold Scheduled user performance. PUTS is simulated using MATLAB R2014a software with Intel i5, 8th generation processor. PUTS and FTS sample size were calculated and simulated according obtained iterations. Here, 18 iterations has been done for BER performance analysis. Number of transceiver antennas, Additive White Noise with Rayleigh channel is taken for Bit Error Rate (BER) analysis. Simulation compares the scheduling performance of PUTS with FTS. The average BER of per User Threshold Scheduling is 0.02*10^-3 and the average Bit Error Rate performance of Fair Threshold Scheduling is 11.3*10^-5. The simulated results show that PUTS has improvement with the p level (p=0.442) in BER performance when compared to Fair Threshold Scheduling.