Performance analysis of closed-loop MIMO techniques in practical scenarios


Abstract in English

The employment of multiple antennas at the transmission and reception side for the formation of a MIMO system contributed significantly to improve the reliability of transmission and increase the data rate. In the last decade, this system represented the backbone of wireless communications which paved the way for the development of many techniques in this area. Therefore, there is a need to study the most important of these techniques and compare its performance analysis. This research deals with several closed-loop MIMO techniques : (P-OSM) which maximizes the minimum Euclidean distance in the received signal constellation in order to reduce the bit error rate, (X and Y Precoders) which improve the diversity gain of MIMO system. The aim is to study and analysis the performance of previous techniques in practical scenarios of wireless communication systems in the presence of limited feedback channel. The results shows the possibility of practical employment of the P-OSM technique in a simple way compared to other techniques due to its good performance and low complexity order.

References used

ANDREWS, J. G; GHOSH, A; MUHAMED, R .Fundamentals of WiMAX Understanding Broadband Wireless Networking. . ed., Prentice Hall, 2007, 496
Clerckx, B, Oestges, C. MIMO Wireless Networks: Channels, Techniques and Standards for Multi-Antenna, Multi-User and Multi-Cell Systems. Academic Press (Elsevier), Oxford, UK, Jan 2013, 752
VASHI, R. CHOKSI, A. SEVAK, M. M. A Performance Comparison of Spatial Multiplexing MIMO. International Journal of Computer Applications, Vol. 125, No. 3, 2015, 6-9

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