Performance analysis of Novel coding technique suitable for time varying Wireless Communication Systems using Multiple Input Multiple Output
M.Tech Student, JDCT, Indore, India
ABSTRACT
This paper presents highly robust coding technique suitable for multiple-input multipleoutput (MIMO) system. MIMO seems to be the only solution for today’s hostile wireless communication system. It has been found that the use of multiple antennas at either transmitter or receiver greatly improves the reception of Rayleigh faded signal. So time is to search for coding technique suitable for MIMO environment. This work presents Space Frequency Block Coding (SFBC) technique that improves the performance of multipath signals of wireless communication systems. it can be observed by the analysis of space time block codes (STBC) and SFBC that SFBC is the close choice of MIMO as far as frequency faded channel is concerned. This work discusses the combinations of multiple antennas at either transmitter and or receiver and shows that increase in number of antennas gives rise to bit error rate (BER) which is one of the important measure of link reliability.To show the conclusion, comparison has been using SFBC coded three transmit and multiple receive antennassystems. It is found that SFBC coding plays important role in increasing data rate and provide diversity gain and as the number of antennas increases either in transmitter or in receiver side, it provides diversity gain. Thisgreatly improves the performance of wireless communication channel in Rayleigh faded environment.
