Adaptive MIMO technology for 4G

Abstract

The communication industry is one of the fastest growing industries. The cellular systems started in the 80’s with 1G have now reached to 4G. The growing demand of high data rates are increasing exponentially with time. The typical goals of a communication engineer are high speed communication for which the data rate should be high, better quality of signal for which we have to minimize the bit error rate as low as possible, less power consumption and VLSI implement ability. The 4G system ensures us data rate of 1Gbps which cannot be achieved by SISO systems and hence we go for MIMO system. The various benefits of MIMO are discussed in this report. The implementation of Alamouti scheme is also discussed and then the various methods of channel estimation are discussed and simulated.
The proposed MIMO system has distinguished advantages over the conventional SISO systems and this is being implemented in 4G cellular, MIMO radar and in various other emerging communication technologies.