Tuesday, October 10, 2017

New M.Tech. Thesis Submitted from electronics

PERFORMANCE ANALYSIS OF 5G NETWORK BASED ON BDMA AND MASSIVE - MIMO by Shweta Vij

Abstract
5th generation wireless systems, also abbreviated as 5G, is the next proposed telecommunications standards beyond present 4G standard. Main aim of 5G network is capacity enhancement with the deployment of large number of antennas (Massive MIMO) whereas LTE focuses on high speed rather than capacity. LTE- A is the advanced version of LTE with the advancement in its features as well. LTE-A supports bandwidth of 100 MHz to 6GHz, therefore below 6GHz, 5G network will operate on LTE-A network and above 6 GHz range 5G will offer large bandwidth with small coverage area due to path loss at high frequencies. This work presents capacity analysis with the help of BDMA and Massive MIMO techniques where outage probability considered is 10%, performance analysis of 5G networks on BDMA using different modulation techniques and reduction of interference using beamforming. It has been observed that BER decreases as SNR increases in case of all the modulation schemes used: BPSK, QPSK, 16QAM and 16PSK on BDMA in case of LTE-A and 5G and OFDMA in case of 4G. Results of simulation show that lower BER is achieved in case of BPSK. Also, capacity analysis proves that as the number of antennas is increased capacity of the system improves drastically. Beamforming technique used for interference reduction provides improvements in case of low number of antennas. Improvement of about 70% is achieved when BDMA is used in LTE-A networks with BPSK providing best results and capacity improvement of about 65% is obtained with the use of Massive MIMO technology and interference reduction of 60% achieved in case of lower number of antennas by using beamforming.